Month	US dollars
1999-07-31	206
1999-08-31	-7
1999-09-30	119
1999-10-31	-41
1999-11-30	220
1999-12-31	-10
2000-01-31	384
2000-02-29	-15
2000-03-31	-156
2000-04-30	139
2000-05-31	597
2000-06-30	819
2000-07-31	1269
2000-08-31	1658
2000-09-30	2156
2000-10-31	1964
2000-11-30	1251
2000-12-31	1256
2001-01-31	1071
2001-02-28	1160
2001-03-31	2244
2001-04-30	2173
2001-05-31	1987
2001-06-30	1920
2001-07-31	2138
2001-08-31	1803
2001-09-30	2000
2001-10-31	1377
2001-11-30	1263
2001-12-31	1380
2002-01-31	1312
2002-02-28	1745
2002-03-31	1858
2002-04-30	1805
2002-05-31	951
2002-06-30	1570
2002-07-31	2273
2002-08-31	1805
2002-09-30	1549
2002-10-31	1569
2002-11-30	1978
2002-12-31	892
2003-01-31	804
2003-02-28	1110
2003-03-31	2435
2003-04-30	950
2003-05-31	1253
2003-06-30	1765
2003-07-31	2324
2003-08-31	2242
2003-09-30	2470
2003-10-31	2811
2003-11-30	2635
2003-12-31	2042
2004-01-31	4191
2004-02-29	3406
2004-03-31	4092
2004-04-30	4163
2004-05-31	4481
2004-06-30	4226
2004-07-31	4153
2004-08-31	3978
2004-09-30	3898
2004-10-31	4223
2004-11-30	3965
2004-12-31	3918
2005-01-31	4811
2005-02-28	4854
2005-03-31	4029
2005-04-30	4077
2005-05-31	3800
2005-06-30	3688
2005-07-31	2582
2005-08-31	3089
2005-09-30	3551
2005-10-31	2774
2005-11-30	2332
2005-12-31	3569
2006-01-31	2238
2006-02-28	3540
2006-03-31	3974
2006-04-30	3511
2006-05-31	4259
2006-06-30	2558
2006-07-31	3204
2006-08-31	3243
2006-09-30	4140
2006-10-31	3748
2006-11-30	3550
2006-12-31	4074
2007-01-31	4341
2007-02-28	3770
2007-03-31	3360
2007-04-30	3032
2007-05-31	3114
2007-06-30	2731
2007-07-31	2954
2007-08-31	3255
2007-09-30	4655
2007-10-31	4305
2007-11-30	3382
2007-12-31	3060
2008-01-31	4283
2008-02-29	2643
2008-03-31	4324
2008-04-30	5561
2008-05-31	5778
2008-06-30	5569
2008-07-31	3258
2008-08-31	3782
2008-09-30	3783
2008-10-31	327
2008-11-30	-1892
2008-12-31	-2939
2009-01-31	-3019
2009-02-28	-3299
2009-03-31	-3651
2009-04-30	-2805
2009-05-31	-2400
2009-06-30	-1312
2009-07-31	-733
2009-08-31	-925
2009-09-30	-1388
2009-10-31	-987
2009-11-30	-949
2009-12-31	-169
2010-01-31	727
2010-02-28	987
2010-03-31	4520
2010-04-30	4316
2010-05-31	3080
2010-06-30	2219
2010-07-31	2086
2010-08-31	2075
2010-09-30	3446
2010-10-31	1570
2010-11-30	2070
2010-12-31	1303
2011-01-31	3517
2011-02-28	4030
2011-03-31	2768
2011-04-30	4037
2011-05-31	4941
2011-06-30	4017
2011-07-31	4920
2011-08-31	5477
2011-09-30	6655
2011-10-31	7427
2011-11-30	6579
2011-12-31	5543
2012-01-31	5309
2012-02-29	6432
2012-03-31	6565
2012-04-30	8464
2012-05-31	8179
2012-06-30	7971
2012-07-31	8406
2012-08-31	7063
2012-09-30	6027
2012-10-31	5140
2012-11-30	4921
2012-12-31	5146
2013-01-31	6017
2013-02-28	4024
2013-03-31	5780
2013-04-30	5672
2013-05-31	4820
2013-06-30	4792
2013-07-31	4096
2013-08-31	5271
2013-09-30	6296
2013-10-31	6232
2013-11-30	6845
2013-12-31	7734
2014-01-31	9111
2014-02-28	9322
2014-03-31	12483
2014-04-30	7654
2014-05-31	7296
2014-06-30	6720
2014-07-31	8233
2014-08-31	8263
2014-09-30	8489
2014-10-31	8925
2014-11-30	6844
2014-12-31	5645
2015-01-31	5728
2015-02-28	8494
2015-03-31	9817
2015-04-30	8335
2015-05-31	9455
2015-06-30	7869
2015-07-31	10115
2015-08-31	8139
2015-09-30	7454
2015-10-31	11114
2015-11-30	6900
2015-12-31	7003
2016-01-31	8330
2016-02-29	4868
2016-03-31	3699
2016-04-30	12656
2016-05-31	9299
2016-06-30	6528
2016-07-31	12401
2016-08-31	12420
2016-09-30	10094
2016-10-31	12012
2016-11-30	9399
2016-12-31	6727
2017-01-31	9945
2017-02-28	8554
2017-03-31	8400
2017-04-30	15807
2017-05-31	12975
2017-06-30	6524
2017-07-31	17138
2017-08-31	14482
2017-09-30	7813
2017-10-31	13172
2017-11-30	9275
2017-12-31	13872
2018-01-31	21976
2018-02-28	17483
2018-03-31	17032
2018-04-30	16499
2018-05-31	18572
2018-06-30	13761
2018-07-31	15548
2018-08-31	18062
2018-09-30	16163
2018-10-31	16812
2018-11-30	11055
2018-12-31	6758
2019-01-31	10733
2019-02-28	7949
2019-03-31	7140
2019-04-30	19021
2019-05-31	15851
2019-06-30	14708
2019-07-31	20942
2019-08-31	19759
2019-09-30	5407
2019-10-31	9655
2019-11-30	16813
2019-12-31	13103
2020-01-31	19039
2020-02-29	13374
2020-03-31	9201
2020-04-30	11311
2020-05-31	9937
2020-06-30	8928
2020-07-31	12349
2020-08-31	11801
2020-09-30	10914
2020-10-31	14591
2020-11-30	10751
2020-12-31	6299
2021-01-31	13713
2021-02-28	17253
2021-03-31	16810
2021-04-30	16669
2021-05-31	14680
2021-06-30	17753
2021-07-31	16786
2021-08-31	14495
2021-09-30	16752
2021-10-31	12403
2021-11-30	13759
2021-12-31	13698
2022-01-31	12920
2022-02-28	17805
2022-03-31	14440
2022-04-30	12391
2022-05-31	10737
2022-06-30	11717
2022-07-31	11875
2022-08-31	9852
2022-09-30	11767
2022-10-31	12482
2022-11-30	9806
2022-12-31	9637
2023-01-31	11734
2023-02-28	11991
2023-03-31	15452
2023-04-30	17957
2023-05-31	15238
2023-06-30	15235
2023-07-31	18808
2023-08-31	20813
2023-09-30	16292
2023-10-31	15804
2023-11-30	15464
2023-12-31	15403