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Aggregation: measureAggregations

Factor

allocated MiB

peak allocated MiB

time_s

cache=n

dps=1

iters=10

policies=100

*mean*	54.576-54.617=-0.041
σ	0.349-0.351=-0.002
min	54.443-54.485=-0.042
max	55.569-55.617=-0.048

*mean*	419.000-417.600=1.400
σ	0.000-0.843=-0.843
min	419.000-416.000=3.000
max	419.000-418.000=1.000

*mean*	0.140-0.141=-0.001
σ	0.005-0.004=0.001
min	0.137-0.136=0.001
max	0.149-0.147=0.002

cache=y

dps=1

iters=10

policies=100

*mean*	43.706-43.784=-0.078
σ	0.006-0.006=-0.000
min	43.700-43.776=-0.075
max	43.719-43.793=-0.074

*mean*	419.000-418.000=1.000
σ	0.000
min	419.000-418.000=1.000
max	419.000-418.000=1.000

*mean*	0.121-0.123=-0.002
σ	0.004-0.004=0.000
min	0.117-0.115=0.002
max	0.130-0.131=-0.001

CSV - indexed operations

Factor

allocated MiB

peak allocated MiB

time (ms)

iterations=8

operation_display=column_set() on indexed

rows=200000

*mean*	36.617
σ	0.002
min	36.615
max	36.620

*mean*	4171.875
σ	1899.226
min	1552.000
max	7205.000

*mean*	12.318
σ	0.418
min	11.863
max	13.010

iterations=8

operation_display=column_set() on indexed, repeat

rows=200000

*mean*	36.617
σ	0.002
min	36.616
max	36.620

*mean*	4291.875
σ	1978.942
min	1552.000
max	7205.000

*mean*	103.269
σ	255.890
min	12.575
max	736.563

iterations=8

operation_display=table_records(), no indexes

rows=200000

*mean*	41.930
σ	0.002
min	41.928
max	41.932

*mean*	7205.000
σ	0.000
min	7205.000
max	7205.000

*mean*	14.246
σ	1.215
min	11.716
max	15.070

iterations=8

operation_display=table_records(), no indexes, repeat

rows=200000

*mean*	41.930
σ	0.002
min	41.928
max	41.932

*mean*	7205.000
σ	0.000
min	7205.000
max	7205.000

*mean*	12.890
σ	1.110
min	10.806
max	14.162

iterations=8

operation_display=table_records(), repeat

rows=200000

*mean*	41.929
σ	0.002
min	41.927
max	41.932

*mean*	4171.875
σ	1899.226
min	1552.000
max	7205.000

*mean*	12.721
σ	1.458
min	10.784
max	14.688

iterations=8

operation_display=vertical_lookup_list() on indexed, after table_records()

rows=200000

*mean*	27.605
σ	0.002
min	27.603
max	27.607

*mean*	4171.875
σ	1899.226
min	1552.000
max	7205.000

*mean*	8.542
σ	0.254
min	8.131
max	8.847

iterations=8

operation_display=vertical_lookup_list() on indexed, after table_records(), repeat

rows=200000

*mean*	26.401
σ	0.002
min	26.399
max	26.403

*mean*	4171.875
σ	1899.226
min	1552.000
max	7205.000

*mean*	6.603
σ	0.299
min	6.097
max	6.924

iterations=8

operation_display=vertical_lookup_row_list() on 2 indexed

rows=200000

*mean*	25.666
σ	0.002
min	25.664
max	25.670

*mean*	4291.875
σ	1978.942
min	1552.000
max	7205.000

*mean*	5.721
σ	0.593
min	5.386
max	7.154

iterations=8

operation_display=vertical_lookup_row_list() on 2 indexed, repeat

rows=200000

*mean*	25.661
σ	0.002
min	25.659
max	25.663

*mean*	4291.875
σ	1978.942
min	1552.000
max	7205.000

*mean*	5.415
σ	0.541
min	5.071
max	6.731

iterations=8

operation_display=vertical_lookup_row_list() on 3 (1 unindexed)

rows=200000

*mean*	25.969
σ	0.002
min	25.967
max	25.972

*mean*	4291.875
σ	1978.942
min	1552.000
max	7205.000

*mean*	5.373
σ	0.403
min	5.135
max	6.357

iterations=8

operation_display=vertical_lookup_row_list() on 3 (1 unindexed), repeat

rows=200000

*mean*	25.968
σ	0.002
min	25.967
max	25.971

*mean*	4291.875
σ	1978.942
min	1552.000
max	7205.000

*mean*	5.260
σ	0.392
min	5.053
max	6.208

op=column_set() on indexed

*mean*	36.618
σ	0.002
min	36.615
max	36.620

*mean*	4154.500
σ	1902.195
min	1557.000
max	7314.000

*mean*	12.744
σ	0.243
min	12.401
max	13.147

op=column_set() on indexed, repeat

*mean*	36.617
σ	0.002
min	36.616
max	36.620

*mean*	4154.500
σ	1902.195
min	1557.000
max	7314.000

*mean*	13.145
σ	0.403
min	12.258
max	13.685

op=table_records(), no indexes

*mean*	41.932
σ	0.001
min	41.929
max	41.933

*mean*	7314.000
σ	0.000
min	7314.000
max	7314.000

*mean*	15.091
σ	0.959
min	12.763
max	15.671

op=table_records(), repeat

*mean*	41.928
σ	0.002
min	41.927
max	41.932

*mean*	4154.500
σ	1902.195
min	1557.000
max	7314.000

*mean*	13.098
σ	1.765
min	10.799
max	15.619

op=vertical_lookup_list() on indexed, after table_records()

*mean*	27.653
σ	0.136
min	27.603
max	27.990

*mean*	4154.500
σ	1902.195
min	1557.000
max	7314.000

*mean*	9.184
σ	0.560
min	8.564
max	10.282

op=vertical_lookup_list() on indexed, after table_records(), repeat

*mean*	26.400
σ	0.002
min	26.399
max	26.403

*mean*	4154.500
σ	1902.195
min	1557.000
max	7314.000

*mean*	6.841
σ	0.370
min	6.199
max	7.202

op=vertical_lookup_row_list() on 2 indexed

*mean*	25.666
σ	0.002
min	25.665
max	25.668

*mean*	4154.500
σ	1902.195
min	1557.000
max	7314.000

*mean*	6.140
σ	0.172
min	5.827
max	6.405

op=vertical_lookup_row_list() on 3 (1 unindexed)

*mean*	25.968
σ	0.002
min	25.967
max	25.972

*mean*	4154.500
σ	1902.195
min	1557.000
max	7314.000

*mean*	5.893
σ	0.102
min	5.739
max	6.057

CSV - loading a lazy table

Factor

allocated MiB

peak allocated MiB

time (ms)

iterations=8

operation_display=load_product(), no indexes

rows=200000

*mean*	2524.595
σ	0.002
min	2524.594
max	2524.598

*mean*	7205.000
σ	0.000
min	7205.000
max	7205.000

*mean*	1194.621
σ	415.565
min	1026.290
max	2222.801

iterations=8

operation_display=load_product(), with indexes

rows=200000

*mean*	8744.561
σ	0.040
min	8744.545
max	8744.661

*mean*	3598.500
σ	1819.402
min	1076.000
max	5839.000

*mean*	4953.536
σ	1596.041
min	3502.194
max	7014.892

op=load_product(), no indexes

*mean*	2524.606
σ	0.000
min	2524.606
max	2524.606

*mean*	7314.000
σ	0.000
min	7314.000
max	7314.000

*mean*	1039.728
σ	6.251
min	1030.739
max	1048.902

op=load_product(), with indexes

*mean*	8744.722
σ	0.469
min	8744.554
max	8745.884

*mean*	3575.625
σ	1799.306
min	1044.000
max	5805.000

*mean*	5052.547
σ	1714.060
min	3517.703
max	7341.368

CSV - unindexed operations

Factor

allocated MiB

peak allocated MiB

time (ms)

iterations=8

operation_display=column_set() on unindexed, dense

rows=200000

*mean*	62.077
σ	0.002
min	62.076
max	62.080

*mean*	4171.875
σ	1899.226
min	1552.000
max	7205.000

*mean*	82.281
σ	10.566
min	71.253
max	100.320

iterations=8

operation_display=column_set() on unindexed, dense, repeat

rows=200000

*mean*	62.077
σ	0.002
min	62.076
max	62.080

*mean*	4171.875
σ	1899.226
min	1552.000
max	7205.000

*mean*	83.051
σ	10.630
min	71.199
max	100.913

iterations=8

operation_display=vertical_lookup_list() on unindexed missing Int

rows=200000

*mean*	40.945
σ	0.002
min	40.944
max	40.947

*mean*	7205.000
σ	0.000
min	7205.000
max	7205.000

*mean*	102.087
σ	9.650
min	83.615
max	107.880

iterations=8

operation_display=vertical_lookup_list() on unindexed missing Int, repeat

rows=200000

*mean*	40.945
σ	0.002
min	40.943
max	40.948

*mean*	7205.000
σ	0.000
min	7205.000
max	7205.000

*mean*	102.137
σ	9.924
min	83.384
max	108.399

iterations=8

operation_display=vertical_lookup_list() on unindexed unique Int near end

rows=200000

*mean*	40.951
σ	0.002
min	40.949
max	40.953

*mean*	7205.000
σ	0.000
min	7205.000
max	7205.000

*mean*	104.397
σ	9.173
min	89.736
max	112.698

iterations=8

operation_display=vertical_lookup_list() on unindexed unique Int near end, repeat

rows=200000

*mean*	40.950
σ	0.002
min	40.948
max	40.954

*mean*	7205.000
σ	0.000
min	7205.000
max	7205.000

*mean*	102.220
σ	9.571
min	84.061
max	108.520

iterations=8

operation_display=vertical_lookup_row_list() on unindexed small unique Int

rows=200000

*mean*	66.687
σ	0.002
min	66.685
max	66.690

*mean*	7205.000
σ	0.000
min	7205.000
max	7205.000

*mean*	226.229
σ	194.656
min	131.978
max	706.800

iterations=8

operation_display=vertical_lookup_row_list() on unindexed small unique Int, repeat

rows=200000

*mean*	66.687
σ	0.002
min	66.685
max	66.689

*mean*	7205.000
σ	0.000
min	7205.000
max	7205.000

*mean*	153.685
σ	18.279
min	121.863
max	168.643

op=column_set() on unindexed, dense

*mean*	62.078
σ	0.002
min	62.076
max	62.080

*mean*	4154.500
σ	1902.195
min	1557.000
max	7314.000

*mean*	86.030
σ	11.458
min	70.835
max	99.395

op=vertical_lookup_list() on unindexed missing Int

*mean*	40.944
σ	0.001
min	40.944
max	40.945

*mean*	7314.000
σ	0.000
min	7314.000
max	7314.000

*mean*	106.306
σ	8.829
min	85.413
max	112.486

op=vertical_lookup_row_list() on unindexed small unique Int

*mean*	66.686
σ	0.000
min	66.685
max	66.687

*mean*	7314.000
σ	0.000
min	7314.000
max	7314.000

*mean*	162.020
σ	13.091
min	130.471
max	169.779

CSV - warmup

Factor

allocated MiB

peak allocated MiB

time (ms)

iterations=8

operation_display=table_records()

rows=200000

*mean*	11656.833
σ	4.318
min	11655.305
max	11667.519

*mean*	4171.875
σ	1899.226
min	1552.000
max	7205.000

*mean*	7004.260
σ	1173.716
min	4918.654
max	8314.334

iterations=8

operation_display=vertical_lookup_list() on indexed

rows=200000

*mean*	11560.065
σ	0.001
min	11560.064
max	11560.068

*mean*	7205.000
σ	0.000
min	7205.000
max	7205.000

*mean*	5671.153
σ	1525.791
min	4357.434
max	8525.665

op=table_records()

*mean*	11656.836
σ	4.324
min	11655.305
max	11667.538

*mean*	4154.500
σ	1902.195
min	1557.000
max	7314.000

*mean*	6582.482
σ	1335.135
min	4895.283
max	8182.013

op=vertical_lookup_list() on indexed

*mean*	11560.065
σ	0.001
min	11560.064
max	11560.066

*mean*	7314.000
σ	0.000
min	7314.000
max	7314.000

*mean*	5142.594
σ	1277.726
min	4289.536
max	7892.758

CSV internal benchmark: pointedIndexFromKvs

Factor

allocated MiB

peak allocated MiB

time (ms)

iterations=8

operation_display=pointedIndexFromKvs

rows=200000

*mean*	172.668
σ	0.011
min	172.642
max	172.681

*mean*	488.125
σ	0.354
min	488.000
max	489.000

*mean*	400.904
σ	20.720
min	371.589
max	424.511

iterations=8

operation_display=pointedIndexFromKvs

rows=400000

*mean*	357.458
σ	0.153
min	357.321
max	357.633

*mean*	565.000
σ	0.000
min	565.000
max	565.000

*mean*	801.328
σ	50.571
min	707.854
max	890.570

op=pointedIndexFromKvs

rows=200000

*mean*	172.559
σ	0.001
min	172.558
max	172.562

*mean*	478.000
σ	0.000
min	478.000
max	478.000

*mean*	382.407
σ	16.626
min	358.065
max	399.625

op=pointedIndexFromKvs

rows=400000

*mean*	357.322
σ	0.001
min	357.321
max	357.325

*mean*	560.000
σ	0.000
min	560.000
max	560.000

*mean*	741.261
σ	67.584
min	606.913
max	804.348

Marine Hull: transactPolicy

Factor

allocated MiB

peak allocated MiB

time

datapoints=1

iterations=20

*mean*	1008.501-1008.084=0.417
σ	0.760-0.761=-0.001
min	1008.025-1007.610=0.415
max	1011.641-1011.231=0.411

*mean*	1058.650-7205.000=-6146.350
σ	314.440-0.000=314.440
min	563.000-7205.000=-6642.000
max	1521.000-7205.000=-5684.000

*mean*	1.522-1.477=0.046
σ	0.061-0.095=-0.034
min	1.470-1.380=0.089
max	1.725-1.712=0.013

Parser: Comma Sep

Factor

allocated MiB

peak allocated MiB

time (ms)

name=ambiguous_item.art

*mean*	0.913-0.883=0.030
σ	0.020-0.002=0.018
min	0.903-0.881=0.021
max	0.949-0.886=0.063

*mean*	402.000-7205.000=-6803.000
σ	0.000
min	402.000-7205.000=-6803.000
max	402.000-7205.000=-6803.000

*mean*	0.295-0.311=-0.016
σ	0.291-0.127=0.164
min	0.135-0.236=-0.101
max	0.811-0.535=0.276

name=error_case.art

*mean*	2.339-2.333=0.006
σ	0.012-0.003=0.010
min	2.333-2.332=0.001
max	2.361-2.337=0.024

*mean*	402.000-7205.000=-6803.000
σ	0.000
min	402.000-7205.000=-6803.000
max	402.000-7205.000=-6803.000

*mean*	0.479-0.787=-0.307
σ	0.316-0.171=0.145
min	0.331-0.617=-0.286
max	1.044-1.009=0.035

name=heavy_item.art

*mean*	1.522-1.521=0.001
σ	0.002-0.002=0.000
min	1.521-1.520=0.001
max	1.525-1.524=0.001

*mean*	402.000-7205.000=-6803.000
σ	0.000
min	402.000-7205.000=-6803.000
max	402.000-7205.000=-6803.000

*mean*	0.220-0.528=-0.308
σ	0.016-0.048=-0.032
min	0.208-0.487=-0.279
max	0.248-0.601=-0.353

name=nested_use.art

*mean*	2.357-2.355=0.001
σ	0.002
min	2.356-2.355=0.001
max	2.360-2.358=0.001

*mean*	402.000-7205.000=-6803.000
σ	0.000
min	402.000-7205.000=-6803.000
max	402.000-7205.000=-6803.000

*mean*	0.333-0.836=-0.503
σ	0.011-0.045=-0.034
min	0.324-0.801=-0.477
max	0.352-0.912=-0.560

Parser: Real World

Factor

allocated MiB

peak allocated MiB

time (sec)

name=aon_gpf25_7k_loc.art

*mean*	964.741-963.541=1.200
σ	0.011-0.020=-0.009
min	964.736-963.523=1.213
max	964.760-963.569=1.191

*mean*	436.200-7205.000=-6768.800
σ	5.541-0.000=5.541
min	431.000-7205.000=-6774.000
max	442.000-7205.000=-6763.000

*mean*	0.549-0.833=-0.284
σ	0.031-0.025=0.006
min	0.523-0.788=-0.265
max	0.602-0.851=-0.248

name=cdr_enhanced_4k_loc.art

*mean*	885.814-884.853=0.961
σ	0.002-0.006=-0.004
min	885.812-884.847=0.965
max	885.816-884.860=0.956

*mean*	442.000-7205.000=-6763.000
σ	0.000
min	442.000-7205.000=-6763.000
max	442.000-7205.000=-6763.000

*mean*	0.474-0.733=-0.259
σ	0.030-0.004=0.026
min	0.436-0.728=-0.292
max	0.511-0.738=-0.226

Parser: Record Parsing

Factor

allocated MiB

peak allocated MiB

time (ms)

name=record_render_large_success.art

*mean*	7.708-7.706=0.001
σ	0.002-0.002=-0.000
min	7.707-7.705=0.001
max	7.711-7.711=-0.001

*mean*	442.000-7205.000=-6763.000
σ	0.000
min	442.000-7205.000=-6763.000
max	442.000-7205.000=-6763.000

*mean*	2.552-4.289=-1.736
σ	0.074-0.112=-0.039
min	2.444-4.123=-1.679
max	2.892-4.726=-1.834

name=record_render_large_syntax_err.art

*mean*	7.656-7.655=0.001
σ	0.002
min	7.655-7.654=0.001
max	7.659-7.658=0.001

*mean*	442.000-7205.000=-6763.000
σ	0.000
min	442.000-7205.000=-6763.000
max	442.000-7205.000=-6763.000

*mean*	2.608-4.260=-1.652
σ	0.090-0.093=-0.002
min	2.421-4.124=-1.703
max	2.926-4.554=-1.629

name=record_render_success.art

*mean*	2.289-2.288=0.001
σ	0.002
min	2.288-2.287=0.001
max	2.292-2.291=0.001

*mean*	442.000-7205.000=-6763.000
σ	0.000
min	442.000-7205.000=-6763.000
max	442.000-7205.000=-6763.000

*mean*	0.306-0.755=-0.449
σ	0.009-0.021=-0.012
min	0.289-0.716=-0.428
max	0.363-0.870=-0.506

name=record_render_syntax_err.art

*mean*	2.165-2.163=0.001
σ	0.002
min	2.164-2.163=0.001
max	2.168-2.166=0.001

*mean*	442.000-7205.000=-6763.000
σ	0.000
min	442.000-7205.000=-6763.000
max	442.000-7205.000=-6763.000

*mean*	0.294-0.716=-0.422
σ	0.019-0.022=-0.003
min	0.278-0.603=-0.325
max	0.463-0.837=-0.373

SoV import

Factor

allocated MiB

peak allocated MiB

time_s

iters=10

rows=1000

*mean*	298.310-297.509=0.802
σ	0.945-0.195=0.750
min	297.794-297.384=0.410
max	300.979-298.034=2.944

*mean*	441.100-7205.000=-6763.900
σ	13.337-0.000=13.337
min	420.000-7205.000=-6785.000
max	460.000-7205.000=-6745.000

*mean*	0.620-0.576=0.045
σ	0.008-0.038=-0.030
min	0.610-0.518=0.092
max	0.637-0.616=0.021

Timed compile per phase

Factor

allocated MiB

peak allocated MiB

time (ms)

phase=buildDeclTree

*mean*	222.008
σ	0.000
min	222.008
max	222.008

*mean*	1748.000
σ	0.000
min	1748.000
max	1748.000

*mean*	203.335
σ	1.688
min	200.719
max	206.077

phase=macro expansion

*mean*	6.130
σ	0.000
min	6.130
max	6.130

*mean*	1748.000
σ	0.000
min	1748.000
max	1748.000

*mean*	11.400
σ	1.197
min	10.125
max	12.574

phase=parser

*mean*	1042.098
σ	0.000
min	1042.098
max	1042.099

*mean*	1748.000
σ	0.000
min	1748.000
max	1748.000

*mean*	727.355
σ	87.029
min	564.822
max	844.427

phase=processProdDef

*mean*	6169.660
σ	0.001
min	6169.659
max	6169.661

*mean*	1749.000
σ	2.828
min	1748.000
max	1756.000

*mean*	4968.745
σ	1092.179
min	3484.979
max	6998.011

phase=renaming

*mean*	21.671
σ	0.000
min	21.671
max	21.671

*mean*	1748.000
σ	0.000
min	1748.000
max	1748.000

*mean*	40.141
σ	7.638
min	31.497
max	47.425

phase=type checker

*mean*	958.457
σ	0.066
min	958.360
max	958.547

*mean*	1748.000
σ	0.000
min	1748.000
max	1748.000

*mean*	813.244
σ	60.004
min	718.981
max	872.961

Workflow: transactPolicy

Factor

allocated MiB

peak allocated MiB

time

iters=5

new-facts=1

prior-facts=1

*mean*	293.379-289.722=3.656
σ	0.035-0.028=0.007
min	293.331-289.680=3.651
max	293.416-289.748=3.667

*mean*	445.000-7205.000=-6760.000
σ	0.000
min	445.000-7205.000=-6760.000
max	445.000-7205.000=-6760.000

*mean*	0.406-0.396=0.010
σ	0.006-0.006=0.000
min	0.398-0.388=0.009
max	0.411-0.403=0.007

iters=5

new-facts=1

prior-facts=6402

*mean*	1303.493-1299.654=3.839
σ	0.078-0.068=0.010
min	1303.363-1299.581=3.781
max	1303.562-1299.766=3.796

*mean*	1086.000-7205.000=-6119.000
σ	181.119-0.000=181.119
min	840.000-7205.000=-6365.000
max	1305.000-7205.000=-5900.000

*mean*	2.073-2.018=0.055
σ	0.157-0.156=0.000
min	1.829-1.824=0.005
max	2.242-2.251=-0.009

iters=5

new-facts=6402

prior-facts=1

*mean*	1546.511-1542.626=3.885
σ	4.028-4.067=-0.039
min	1544.532-1540.576=3.955
max	1553.710-1549.893=3.817

*mean*	614.400-7205.000=-6590.600
σ	76.474-0.000=76.474
min	497.000-7205.000=-6708.000
max	701.000-7205.000=-6504.000

*mean*	2.268-2.327=-0.059
σ	0.185-0.234=-0.049
min	2.156-2.080=0.075
max	2.594-2.658=-0.064

iters=5

new-facts=6402

prior-facts=6402

*mean*	1865.441-1861.608=3.832
σ	0.037-0.059=-0.022
min	1865.393-1861.526=3.867
max	1865.479-1861.654=3.824

*mean*	1739.400-7205.000=-5465.600
σ	222.542-0.000=222.542
min	1442.000-7205.000=-5763.000
max	1950.000-7205.000=-5255.000

*mean*	2.953-2.938=0.015
σ	0.128-0.073=0.055
min	2.851-2.880=-0.029
max	3.161-3.044=0.117

newProductH/cdr_auton/broker

Factor

time_s

iterations=5

*mean*	1.825-1.810=0.015
σ	0.117-0.109=0.008
min	1.628-1.662=-0.033
max	1.914-1.924=-0.011

policy addition benchmark

Factor

allocated MiB

db queries

peak allocated MiB

time

policies=2

*mean*	447.980-446.145=1.834
σ	579.240-577.063=2.177
min	158.357-157.612=0.745
max	1316.839-1311.739=5.100

*mean*	96.250
σ	8.500
min	92.000
max	109.000

*mean*	443.000-7205.000=-6762.000
σ	0.000
min	443.000-7205.000=-6762.000
max	443.000-7205.000=-6762.000

*mean*	0.538-0.540=-0.002
σ	0.552-0.545=0.007
min	0.260-0.266=-0.006
max	1.366-1.357=0.008

policies=20

*mean*	1583.922-1576.411=7.510
σ	0.363-0.353=0.010
min	1583.670-1576.175=7.495
max	1584.458-1576.935=7.523

*mean*	920.000
σ	0.000
min	920.000
max	920.000

*mean*	446.000-7205.000=-6759.000
σ	2.000-0.000=2.000
min	443.000-7205.000=-6762.000
max	447.000-7205.000=-6758.000

*mean*	2.648-2.628=0.020
σ	0.020-0.016=0.004
min	2.627-2.605=0.022
max	2.675-2.640=0.035

policies=200

*mean*	15847.097-15772.281=74.815
σ	0.096-0.111=-0.014
min	15846.964-15772.156=74.808
max	15847.181-15772.408=74.773

*mean*	9200.000
σ	0.000
min	9200.000
max	9200.000

*mean*	498.500-7205.000=-6706.500
σ	4.509-0.000=4.509
min	493.000-7205.000=-6712.000
max	504.000-7205.000=-6701.000

*mean*	26.549-26.564=-0.016
σ	0.167-0.250=-0.082
min	26.358-26.285=0.073
max	26.761-26.795=-0.033