Month	US dollars
1999-08-31	1964
1999-09-30	4333
1999-12-31	4826
2000-03-31	5002
2000-04-30	5041
2000-05-31	4687
2000-06-30	4918
2000-07-31	4876
2000-08-31	4580
2000-09-30	4554
2000-10-31	4434
2000-11-30	4543
2000-12-31	4962
2001-01-31	4926
2001-02-28	4909
2001-03-31	4710
2001-04-30	4822
2001-05-31	4539
2001-06-30	5890
2001-07-31	4782
2001-08-31	4774
2001-09-30	4855
2001-10-31	4758
2001-11-30	4932
2001-12-31	5040
2002-01-31	5832
2002-02-28	5563
2002-03-31	5756
2002-04-30	6894
2002-05-31	6774
2002-06-30	7413
2002-07-31	8182
2002-08-31	8062
2002-09-30	8345
2002-10-31	8152
2002-11-30	8305
2002-12-31	8594
2003-01-31	9853
2003-02-28	10154
2003-03-31	10264
2003-04-30	10479
2003-05-31	11065
2003-06-30	11107
2003-07-31	10907
2003-08-31	10616
2003-09-30	11192
2003-10-31	11110
2003-11-30	11551
2003-12-31	12170
2004-01-31	10820
2004-02-29	11182
2004-03-31	12403
2004-04-30	11518
2004-05-31	11014
2004-06-30	12002
2004-07-31	12344
2004-08-31	12830
2004-09-30	14078
2004-10-31	13803
2004-11-30	15227
2004-12-31	16380
2005-01-31	17314
2005-02-28	18028
2005-03-31	19600
2005-04-30	20470
2005-05-31	22091
2005-06-30	21623
2005-07-31	20546
2005-08-31	21099
2005-09-30	21938
2005-10-31	22589
2005-11-30	21018
2005-12-31	21999
2006-01-31	21374
2006-02-28	20465
2006-03-31	22420
2006-04-30	23117
2006-05-31	24319
2006-06-30	21719
2006-07-31	20395
2006-08-31	20152
2006-09-30	21777
2006-10-31	21406
2006-11-30	22816
2006-12-31	23606
2007-01-31	20156
2007-02-28	19182
2007-03-31	20563
2007-04-30	19157
2007-05-31	19920
2007-06-30	30797
2007-07-31	19249
2007-08-31	21273
2007-09-30	26056
2007-10-31	29518
2007-11-30	31615
2007-12-31	31596
2008-01-31	30553
2008-02-29	37899
2008-03-31	35604
2008-04-30	29642
2008-05-31	25320
2008-06-30	21785
2008-07-31	20611
2008-08-31	16961
2008-09-30	14701
2008-10-31	10973
2008-11-30	10326
2008-12-31	14073
2009-01-31	11056
2009-02-28	13614
2009-03-31	15279
2009-04-30	17388
2009-05-31	17995
2009-06-30	19560
2009-07-31	20394
2009-08-31	18569
2009-09-30	18221
2009-10-31	17699
2009-11-30	17259
2009-12-31	14187
2010-01-31	14831
2010-02-28	15909
2010-03-31	21235
2010-04-30	21828
2010-05-31	19709
2010-06-30	20964
2010-07-31	23220
2010-08-31	22412
2010-09-30	20926
2010-10-31	22257
2010-11-30	18900
2010-12-31	21798
2011-01-31	19027
2011-02-28	21622
2011-03-31	22750
2011-04-30	23020
2011-05-31	21689
2011-06-30	17489
2011-07-31	18016
2011-08-31	19281
2011-09-30	21119
2011-10-31	22321
2011-11-30	21798
2011-12-31	21663
2012-01-31	19833
2012-02-29	21913
2012-03-31	21472
2012-04-30	22189
2012-05-31	22467
2012-06-30	23659
2012-07-31	23426
2012-08-31	23542
2012-09-30	24587
2012-10-31	23679
2012-11-30	24445
2012-12-31	26224
2013-01-31	22933
2013-02-28	20190
2013-03-31	21880
2013-04-30	22339
2013-05-31	23268
2013-06-30	21770
2013-07-31	23427
2013-08-31	21699
2013-09-30	21809
2013-10-31	23601
2013-11-30	23883
2013-12-31	21098
2014-01-31	22481
2014-02-28	22900
2014-03-31	22704
2014-04-30	18999
2014-05-31	16924
2014-06-30	19389
2014-07-31	20504
2014-08-31	21671
2014-09-30	22213
2014-10-31	21929
2014-11-30	22465
2014-12-31	21849
2015-01-31	21332
2015-02-28	22231
2015-03-31	20568
2015-04-30	23159
2015-05-31	22559
2015-06-30	21043
2015-07-31	21621
2015-08-31	20298
2015-09-30	20658
2015-10-31	23316
2015-11-30	20619
2015-12-31	21084
2016-01-31	19646
2016-02-29	20260
2016-03-31	20877
2016-04-30	22254
2016-05-31	22151
2016-06-30	20513
2016-07-31	21009
2016-08-31	21443
2016-09-30	21166
2016-10-31	17343
2016-11-30	13003
2016-12-31	11971
2017-01-31	12498
2017-02-28	12007
2017-03-31	11121
2017-04-30	12430
2017-05-31	15065
2017-06-30	13767
2017-07-31	15161
2017-08-31	17506
2017-09-30	17459
2017-10-31	17870
2017-11-30	16942
2017-12-31	16508
2018-01-31	17537
2018-02-28	20904
2018-03-31	21612
2018-04-30	20818
2018-05-31	21327
2018-06-30	19874
2018-07-31	18048
2018-08-31	16617
2018-09-30	14022
2018-10-31	15443
2018-11-30	15984
2018-12-31	15785
2019-01-31	9445
2019-02-28	9308
2019-03-31	9865
2019-04-30	11923
2019-05-31	12081
2019-06-30	13243
2019-07-31	15475
2019-08-31	16320
2019-09-30	16191
2019-10-31	15803
2019-11-30	16137
2019-12-31	16668
2020-01-31	15723
2020-02-29	17228
2020-03-31	16675
2020-04-30	14013
2020-05-31	15726
2020-06-30	18442
2020-07-31	18197
2020-08-31	18399
2020-09-30	18863
2020-10-31	15986
2020-11-30	16121
2020-12-31	18117
2021-01-31	17077
2021-02-28	16640
2021-03-31	19071
2021-04-30	13961
2021-05-31	9685
2021-06-30	8189
2021-07-31	8966
2021-08-31	9231
2021-09-30	9176
2021-10-31	12337
2021-11-30	11533
2021-12-31	12022
2022-01-31	10178
2022-02-28	10854
2022-03-31	13166
2022-04-30	12966
2022-05-31	15481
2022-06-30	14584
2022-07-31	12122
2022-08-31	10169
2022-09-30	9997
2022-10-31	8810
2022-11-30	10999
2022-12-31	12625
2023-01-31	11333
2023-02-28	10684
2023-03-31	10435
2023-04-30	8971
2023-05-31	8446
2023-06-30	8121
2023-07-31	6994
2023-08-31	8045
2023-09-30	8283
2023-10-31	9651
2023-11-30	10634
2023-12-31	10510