Month	US dollars
1999-07-31	-1307
1999-08-31	-22445
1999-09-30	-21800
1999-10-31	-23683
1999-11-30	-28103
1999-12-31	-28902
2000-01-31	-22604
2000-02-29	-21070
2000-03-31	-22053
2000-04-30	-23765
2000-05-31	-25755
2000-06-30	-27334
2000-07-31	-27905
2000-08-31	-28435
2000-09-30	-29375
2000-10-31	-30221
2000-11-30	-33065
2000-12-31	-34444
2001-01-31	-32001
2001-02-28	-28427
2001-03-31	-29800
2001-04-30	-29827
2001-05-31	-29763
2001-06-30	-29274
2001-07-31	-27753
2001-08-31	-29073
2001-09-30	-29237
2001-10-31	-26741
2001-11-30	-27103
2001-12-31	-25886
2002-01-31	-23940
2002-02-28	-24996
2002-03-31	-25270
2002-04-30	-26197
2002-05-31	-26177
2002-06-30	-28530
2002-07-31	-27487
2002-08-31	-28042
2002-09-30	-27929
2002-10-31	-28522
2002-11-30	-29392
2002-12-31	-26793
2003-01-31	-24451
2003-02-28	-25967
2003-03-31	-26608
2003-04-30	-25157
2003-05-31	-25999
2003-06-30	-25643
2003-07-31	-25542
2003-08-31	-25943
2003-09-30	-28075
2003-10-31	-27239
2003-11-30	-28424
2003-12-31	-28127
2004-01-31	-27838
2004-02-29	-27058
2004-03-31	-27576
2004-04-30	-27134
2004-05-31	-26953
2004-06-30	-27308
2004-07-31	-25991
2004-08-31	-26586
2004-09-30	-27274
2004-10-31	-27884
2004-11-30	-29681
2004-12-31	-30281
2005-01-31	-29392
2005-02-28	-30401
2005-03-31	-29382
2005-04-30	-30026
2005-05-31	-29358
2005-06-30	-29010
2005-07-31	-26987
2005-08-31	-26783
2005-09-30	-28065
2005-10-31	-27547
2005-11-30	-27887
2005-12-31	-27367
2006-01-31	-28630
2006-02-28	-27386
2006-03-31	-28123
2006-04-30	-28696
2006-05-31	-30800
2006-06-30	-27116
2006-07-31	-27826
2006-08-31	-28905
2006-09-30	-29428
2006-10-31	-30347
2006-11-30	-30966
2006-12-31	-30765
2007-01-31	-30804
2007-02-28	-30630
2007-03-31	-29671
2007-04-30	-31619
2007-05-31	-30536
2007-06-30	-30000
2007-07-31	-30293
2007-08-31	-27376
2007-09-30	-28744
2007-10-31	-31741
2007-11-30	-33014
2007-12-31	-33272
2008-01-31	-33136
2008-02-29	-33693
2008-03-31	-34252
2008-04-30	-35437
2008-05-31	-34760
2008-06-30	-34269
2008-07-31	-29923
2008-08-31	-28737
2008-09-30	-27417
2008-10-31	-25962
2008-11-30	-25949
2008-12-31	-25884
2009-01-31	-20933
2009-02-28	-20381
2009-03-31	-21016
2009-04-30	-21913
2009-05-31	-24324
2009-06-30	-22877
2009-07-31	-22553
2009-08-31	-33843
2009-09-30	-33720
2009-10-31	-33593
2009-11-30	-34204
2009-12-31	-33432
2010-01-31	-32565
2010-02-28	-33687
2010-03-31	-36208
2010-04-30	-37503
2010-05-31	-37452
2010-06-30	-36362
2010-07-31	-37931
2010-08-31	-37732
2010-09-30	-39655
2010-10-31	-38884
2010-11-30	-38576
2010-12-31	-40435
2011-01-31	-44054
2011-02-28	-46411
2011-03-31	-44368
2011-04-30	-47714
2011-05-31	-47635
2011-06-30	-48616
2011-07-31	-49021
2011-08-31	-51189
2011-09-30	-48682
2011-10-31	-51759
2011-11-30	-51368
2011-12-31	-50236
2012-01-31	-50285
2012-02-29	-52093
2012-03-31	-51075
2012-04-30	-52549
2012-05-31	-53530
2012-06-30	-53501
2012-07-31	-52694
2012-08-31	-53918
2012-09-30	-54232
2012-10-31	-55441
2012-11-30	-55754
2012-12-31	-55866
2013-01-31	-56078
2013-02-28	-54423
2013-03-31	-55853
2013-04-30	-54847
2013-05-31	-56505
2013-06-30	-57821
2013-07-31	-58199
2013-08-31	-58556
2013-09-30	-60326
2013-10-31	-61549
2013-11-30	-63247
2013-12-31	-63185
2014-01-31	-62365
2014-02-28	-63536
2014-03-31	-66955
2014-04-30	-63197
2014-05-31	-66480
2014-06-30	-67333
2014-07-31	-66915
2014-08-31	-66961
2014-09-30	-65433
2014-10-31	-68611
2014-11-30	-70314
2014-12-31	-68038
2015-01-31	-69900
2015-02-28	-75811
2015-03-31	-85259
2015-04-30	-85778
2015-05-31	-88324
2015-06-30	-85810
2015-07-31	-89340
2015-08-31	-91086
2015-09-30	-93085
2015-10-31	-94691
2015-11-30	-92497
2015-12-31	-94653
2016-01-31	-98891
2016-02-29	-97405
2016-03-31	-100876
2016-04-30	-107092
2016-05-31	-103307
2016-06-30	-104355
2016-07-31	-110241
2016-08-31	-109035
2016-09-30	-108264
2016-10-31	-109695
2016-11-30	-104673
2016-12-31	-99302
2017-01-31	-104630
2017-02-28	-103626
2017-03-31	-106077
2017-04-30	-112515
2017-05-31	-115020
2017-06-30	-109378
2017-07-31	-120223
2017-08-31	-122234
2017-09-30	-109102
2017-10-31	-109138
2017-11-30	-107218
2017-12-31	-112944
2018-01-31	-116964
2018-02-28	-113000
2018-03-31	-114751
2018-04-30	-112936
2018-05-31	-114796
2018-06-30	-112124
2018-07-31	-109477
2018-08-31	-112200
2018-09-30	-109764
2018-10-31	-111903
2018-11-30	-120462
2018-12-31	-122320
2019-01-31	-125053
2019-02-28	-119129
2019-03-31	-113757
2019-04-30	-114860
2019-05-31	-105684
2019-06-30	-105037
2019-07-31	-108968
2019-08-31	-107539
2019-09-30	-95565
2019-10-31	-109862
2019-11-30	-107762
2019-12-31	-111001
2020-01-31	-102925
2020-02-29	-96811
2020-03-31	-97276
2020-04-30	-99177
2020-05-31	-99080
2020-06-30	-95678
2020-07-31	-97171
2020-08-31	-96204
2020-09-30	-87236
2020-10-31	-90380
2020-11-30	-94654
2020-12-31	-95306
2021-01-31	-90065
2021-02-28	-88488
2021-03-31	-88224
2021-04-30	-87405
2021-05-31	-87429
2021-06-30	-85785
2021-07-31	-86277
2021-08-31	-110504
2021-09-30	-111850
2021-10-31	-110704
2021-11-30	-113373
2021-12-31	-114525
2022-01-31	-108671
2022-02-28	-111884
2022-03-31	-113007
2022-04-30	-106546
2022-05-31	-104132
2022-06-30	-102710
2022-07-31	-101493
2022-08-31	-100029
2022-09-30	-93149
2022-10-31	-98481
2022-11-30	-102234
2022-12-31	-103805
2023-01-31	-103426
2023-02-28	-99273
2023-03-31	-101911
2023-04-30	-104034
2023-05-31	-99580
2023-06-30	-100781
2023-07-31	-105427
2023-08-31	-105592
2023-09-30	-100187
2023-10-31	-101083
2023-11-30	-102856
2023-12-31	-104598