Month	US dollars
1999-07-31	5372
1999-08-31	2051
1999-09-30	6577
1999-10-31	4250
1999-11-30	3121
1999-12-31	3425
2000-01-31	7039
2000-02-29	7677
2000-03-31	4625
2000-04-30	4710
2000-05-31	4611
2000-06-30	5485
2000-07-31	4311
2000-08-31	4272
2000-09-30	4389
2000-10-31	3917
2000-11-30	4115
2000-12-31	4813
2001-01-31	4041
2001-02-28	4365
2001-03-31	4703
2001-04-30	4353
2001-05-31	3823
2001-06-30	3519
2001-07-31	4068
2001-08-31	3643
2001-09-30	3916
2001-10-31	4104
2001-11-30	3657
2001-12-31	3954
2002-01-31	3750
2002-02-28	4409
2002-03-31	5000
2002-04-30	5082
2002-05-31	4865
2002-06-30	5247
2002-07-31	6283
2002-08-31	6185
2002-09-30	6205
2002-10-31	6300
2002-11-30	6567
2002-12-31	6929
2003-01-31	6657
2003-02-28	6219
2003-03-31	6160
2003-04-30	6312
2003-05-31	6451
2003-06-30	7376
2003-07-31	6713
2003-08-31	6755
2003-09-30	5943
2003-10-31	6381
2003-11-30	8396
2003-12-31	10092
2004-01-31	7280
2004-02-29	7233
2004-03-31	7765
2004-04-30	8760
2004-05-31	8192
2004-06-30	9020
2004-07-31	9932
2004-08-31	11650
2004-09-30	12626
2004-10-31	11715
2004-11-30	12655
2004-12-31	12424
2005-01-31	10614
2005-02-28	10015
2005-03-31	10734
2005-04-30	10186
2005-05-31	9306
2005-06-30	9258
2005-07-31	9778
2005-08-31	8349
2005-09-30	9577
2005-10-31	10024
2005-11-30	10953
2005-12-31	11060
2006-01-31	11739
2006-02-28	11314
2006-03-31	13217
2006-04-30	12637
2006-05-31	12642
2006-06-30	12487
2006-07-31	11601
2006-08-31	12028
2006-09-30	12099
2006-10-31	11348
2006-11-30	11382
2006-12-31	11736
2007-01-31	11106
2007-02-28	11368
2007-03-31	11075
2007-04-30	11939
2007-05-31	12136
2007-06-30	12322
2007-07-31	12812
2007-08-31	11274
2007-09-30	9691
2007-10-31	7865
2007-11-30	7074
2007-12-31	6444
2008-01-31	5115
2008-02-29	3822
2008-03-31	3118
2008-04-30	2651
2008-05-31	1809
2008-06-30	1235
2008-07-31	883
2008-08-31	344
2008-09-30	329
2008-10-31	423
2008-11-30	402
2008-12-31	348
2009-01-31	405
2009-02-28	348
2009-03-31	429
2009-04-30	298
2009-05-31	349
2009-06-30	281
2009-07-31	541
2009-08-31	535
2009-09-30	376
2009-10-31	302
2009-11-30	655
2009-12-31	468
2010-01-31	442
2010-02-28	439
2010-03-31	506
2010-04-30	318
2010-05-31	200
2010-06-30	206
2010-07-31	411
2010-08-31	294
2010-09-30	347
2010-10-31	293
2010-11-30	458
2010-12-31	664
2011-01-31	577
2011-02-28	549
2011-03-31	783
2011-04-30	793
2011-05-31	731
2011-06-30	663
2011-07-31	883
2011-08-31	952
2011-09-30	862
2011-10-31	667
2011-11-30	1047
2011-12-31	999
2012-01-31	730
2012-02-29	830
2012-03-31	607
2012-04-30	618
2012-05-31	579
2012-06-30	591
2012-07-31	722
2012-08-31	536
2012-09-30	530
2012-10-31	441
2012-11-30	657
2012-12-31	921
2013-01-31	1084
2013-02-28	963
2013-03-31	649
2013-04-30	693
2013-05-31	739
2013-06-30	687
2013-07-31	750
2013-08-31	1008
2013-09-30	643
2013-10-31	576
2013-11-30	715
2013-12-31	882
2014-01-31	909
2014-02-28	884
2014-03-31	804
2014-04-30	810
2014-05-31	915
2014-06-30	747
2014-07-31	873
2014-08-31	772
2014-09-30	442
2014-10-31	194
2014-11-30	679
2014-12-31	290
2015-01-31	291
2015-02-28	895
2015-03-31	341
2015-04-30	365
2015-05-31	698
2015-06-30	385
2015-07-31	368
2015-08-31	416
2015-09-30	444
2015-10-31	418
2015-11-30	638
2015-12-31	496
2016-01-31	616
2016-02-29	798
2016-03-31	584
2016-04-30	541
2016-05-31	704
2016-06-30	608
2016-07-31	612
2016-08-31	607
2016-09-30	334
2016-10-31	286
2016-11-30	510
2016-12-31	576
2017-01-31	1016
2017-02-28	2045
2017-03-31	346
2017-04-30	421
2017-05-31	669
2017-06-30	477
2017-07-31	475
2017-08-31	612
2017-09-30	455
2017-10-31	417
2017-11-30	585
2017-12-31	599
2018-01-31	489
2018-02-28	1181
2018-03-31	404
2018-04-30	411
2018-05-31	924
2018-06-30	616
2018-07-31	628
2018-08-31	761
2018-09-30	639
2018-10-31	639
2018-11-30	675
2018-12-31	731
2019-01-31	708
2019-02-28	929
2019-03-31	728
2019-04-30	711
2019-05-31	873
2019-06-30	689
2019-07-31	698
2019-08-31	906
2019-09-30	642
2019-10-31	655
2019-11-30	695
2019-12-31	767
2020-01-31	917
2020-02-29	1211
2020-03-31	667
2020-04-30	794
2020-05-31	967
2020-06-30	682
2020-07-31	765
2020-08-31	825
2020-09-30	756
2020-10-31	741
2020-11-30	751
2020-12-31	3156
2021-01-31	1794
2021-02-28	2443
2021-03-31	1922
2021-04-30	973
2021-05-31	944
2021-06-30	583
2021-07-31	569
2021-08-31	701
2021-09-30	607
2021-10-31	2694
2021-11-30	2939
2021-12-31	3088
2022-01-31	1615
2022-02-28	940
2022-03-31	707
2022-04-30	690
2022-05-31	1847
2022-06-30	1661
2022-07-31	1630
2022-08-31	1814
2022-09-30	3034
2022-10-31	5678
2022-11-30	8328
2022-12-31	9976
2023-01-31	9348
2023-02-28	7746
2023-03-31	6553
2023-04-30	1107
2023-05-31	614
2023-06-30	647
2023-07-31	530
2023-08-31	592
2023-09-30	493
2023-10-31	541
2023-11-30	631
2023-12-31	1183