Month	US dollars
1999-07-31	3404
1999-08-31	3586
1999-09-30	2799
1999-10-31	4023
1999-11-30	8962
1999-12-31	8949
2000-01-31	4373
2000-02-29	3229
2000-03-31	4028
2000-04-30	5927
2000-05-31	7109
2000-06-30	8358
2000-07-31	7844
2000-08-31	8104
2000-09-30	9181
2000-10-31	8089
2000-11-30	9221
2000-12-31	9553
2001-01-31	9302
2001-02-28	6277
2001-03-31	7567
2001-04-30	8576
2001-05-31	8415
2001-06-30	8287
2001-07-31	6781
2001-08-31	7665
2001-09-30	7744
2001-10-31	6537
2001-11-30	7001
2001-12-31	5813
2002-01-31	4300
2002-02-28	4318
2002-03-31	4369
2002-04-30	5753
2002-05-31	5715
2002-06-30	6564
2002-07-31	6978
2002-08-31	8468
2002-09-30	7700
2002-10-31	7675
2002-11-30	8250
2002-12-31	4906
2003-01-31	2893
2003-02-28	4840
2003-03-31	5921
2003-04-30	4974
2003-05-31	5403
2003-06-30	4333
2003-07-31	5104
2003-08-31	5293
2003-09-30	6047
2003-10-31	5570
2003-11-30	6258
2003-12-31	5834
2004-01-31	5758
2004-02-29	5233
2004-03-31	5700
2004-04-30	5536
2004-05-31	5097
2004-06-30	4753
2004-07-31	3396
2004-08-31	3544
2004-09-30	3665
2004-10-31	3630
2004-11-30	3836
2004-12-31	4051
2005-01-31	4324
2005-02-28	4532
2005-03-31	3497
2005-04-30	4320
2005-05-31	4346
2005-06-30	3683
2005-07-31	3789
2005-08-31	3518
2005-09-30	3820
2005-10-31	3280
2005-11-30	3535
2005-12-31	5139
2006-01-31	3489
2006-02-28	4719
2006-03-31	4938
2006-04-30	4744
2006-05-31	5127
2006-06-30	3953
2006-07-31	4308
2006-08-31	4006
2006-09-30	4932
2006-10-31	4378
2006-11-30	4195
2006-12-31	4417
2007-01-31	4475
2007-02-28	4169
2007-03-31	4383
2007-04-30	3697
2007-05-31	3671
2007-06-30	3036
2007-07-31	3147
2007-08-31	3344
2007-09-30	4825
2007-10-31	4440
2007-11-30	4284
2007-12-31	4483
2008-01-31	6188
2008-02-29	4983
2008-03-31	7913
2008-04-30	9212
2008-05-31	9326
2008-06-30	9040
2008-07-31	6573
2008-08-31	7672
2008-09-30	7134
2008-10-31	3646
2008-11-30	2044
2008-12-31	2742
2009-01-31	1378
2009-02-28	1133
2009-03-31	956
2009-04-30	1158
2009-05-31	1131
2009-06-30	1542
2009-07-31	1953
2009-08-31	2005
2009-09-30	1755
2009-10-31	1867
2009-11-30	2231
2009-12-31	2673
2010-01-31	2848
2010-02-28	3600
2010-03-31	6628
2010-04-30	6144
2010-05-31	5142
2010-06-30	3486
2010-07-31	3286
2010-08-31	3423
2010-09-30	5025
2010-10-31	3118
2010-11-30	3392
2010-12-31	2867
2011-01-31	4706
2011-02-28	4995
2011-03-31	4077
2011-04-30	4622
2011-05-31	5573
2011-06-30	5309
2011-07-31	5529
2011-08-31	6794
2011-09-30	7853
2011-10-31	8527
2011-11-30	8057
2011-12-31	6459
2012-01-31	5814
2012-02-29	6825
2012-03-31	6541
2012-04-30	7646
2012-05-31	8826
2012-06-30	8014
2012-07-31	8166
2012-08-31	7048
2012-09-30	5432
2012-10-31	4490
2012-11-30	4733
2012-12-31	4412
2013-01-31	6163
2013-02-28	5048
2013-03-31	5949
2013-04-30	5364
2013-05-31	5232
2013-06-30	4813
2013-07-31	4372
2013-08-31	5040
2013-09-30	4604
2013-10-31	5063
2013-11-30	5171
2013-12-31	5602
2014-01-31	6903
2014-02-28	6594
2014-03-31	10032
2014-04-30	4773
2014-05-31	4810
2014-06-30	3207
2014-07-31	4587
2014-08-31	5567
2014-09-30	6097
2014-10-31	6995
2014-11-30	6008
2014-12-31	4047
2015-01-31	4690
2015-02-28	5831
2015-03-31	8883
2015-04-30	6464
2015-05-31	7421
2015-06-30	4105
2015-07-31	6627
2015-08-31	6282
2015-09-30	7034
2015-10-31	9026
2015-11-30	7286
2015-12-31	7443
2016-01-31	8714
2016-02-29	5262
2016-03-31	4268
2016-04-30	13167
2016-05-31	9699
2016-06-30	8560
2016-07-31	13283
2016-08-31	13431
2016-09-30	10991
2016-10-31	13223
2016-11-30	10280
2016-12-31	8430
2017-01-31	11585
2017-02-28	10159
2017-03-31	10431
2017-04-30	17869
2017-05-31	14924
2017-06-30	9990
2017-07-31	19648
2017-08-31	18362
2017-09-30	11907
2017-10-31	16805
2017-11-30	12738
2017-12-31	18637
2018-01-31	23778
2018-02-28	19768
2018-03-31	21703
2018-04-30	18663
2018-05-31	20114
2018-06-30	18351
2018-07-31	16576
2018-08-31	18870
2018-09-30	17585
2018-10-31	19134
2018-11-30	29366
2018-12-31	34652
2019-01-31	34646
2019-02-28	28978
2019-03-31	25085
2019-04-30	27937
2019-05-31	16917
2019-06-30	16701
2019-07-31	21894
2019-08-31	20932
2019-09-30	12417
2019-10-31	25858
2019-11-30	23514
2019-12-31	30350
2020-01-31	20878
2020-02-29	16222
2020-03-31	12373
2020-04-30	13103
2020-05-31	12019
2020-06-30	10184
2020-07-31	13252
2020-08-31	14121
2020-09-30	11893
2020-10-31	15230
2020-11-30	22099
2020-12-31	22732
2021-01-31	17369
2021-02-28	17638
2021-03-31	17733
2021-04-30	17133
2021-05-31	15733
2021-06-30	17540
2021-07-31	17026
2021-08-31	14231
2021-09-30	17554
2021-10-31	16533
2021-11-30	18058
2021-12-31	25201
2022-01-31	17593
2022-02-28	20651
2022-03-31	18622
2022-04-30	17967
2022-05-31	14376
2022-06-30	19688
2022-07-31	18553
2022-08-31	21425
2022-09-30	15930
2022-10-31	20004
2022-11-30	20208
2022-12-31	20379
2023-01-31	18004
2023-02-28	17249
2023-03-31	17521
2023-04-30	19054
2023-05-31	15859
2023-06-30	16392
2023-07-31	19936
2023-08-31	20511
2023-09-30	17204
2023-10-31	15746
2023-11-30	15596
2023-12-31	16241