Month	US dollars
1999-07-31	0
1999-08-31	167
1999-09-30	164
1999-10-31	0
1999-11-30	0
1999-12-31	38
2000-01-31	0
2000-02-29	0
2000-03-31	147
2000-04-30	44
2000-05-31	35
2000-06-30	37
2000-07-31	9
2000-08-31	8
2000-09-30	10
2000-10-31	11
2000-11-30	13
2000-12-31	13
2001-01-31	12
2001-02-28	13
2001-03-31	74
2001-04-30	9
2001-05-31	10
2001-06-30	8
2001-07-31	8
2001-08-31	11
2001-09-30	14
2001-10-31	11
2001-11-30	9
2001-12-31	10
2002-01-31	13
2002-02-28	6
2002-03-31	65
2002-04-30	66
2002-05-31	62
2002-06-30	11
2002-07-31	4
2002-08-31	3
2002-09-30	1
2002-10-31	2
2002-11-30	5
2002-12-31	1
2003-01-31	2
2003-02-28	2
2003-03-31	1
2003-04-30	1
2003-05-31	3
2003-06-30	8
2003-07-31	4
2003-08-31	2
2003-09-30	3
2003-10-31	2
2003-11-30	3
2003-12-31	2
2004-01-31	2
2004-02-29	3
2004-03-31	2
2004-04-30	1
2004-05-31	3
2004-06-30	2
2004-07-31	3
2004-08-31	3
2004-09-30	3
2004-10-31	4
2004-11-30	3
2004-12-31	2
2005-01-31	7
2005-02-28	9
2005-03-31	8
2005-04-30	9
2005-05-31	9
2005-06-30	8
2005-07-31	3
2005-08-31	3
2005-09-30	2
2005-10-31	7
2005-11-30	9
2005-12-31	11
2006-01-31	18
2006-02-28	10
2006-03-31	8
2006-04-30	10
2006-05-31	8
2006-06-30	16
2006-07-31	4
2006-08-31	5
2006-09-30	12
2006-10-31	6
2006-11-30	4
2006-12-31	9
2007-01-31	8
2007-02-28	9
2007-03-31	8
2007-04-30	7
2007-05-31	8
2007-06-30	8
2007-07-31	8
2007-08-31	8
2007-09-30	8
2007-10-31	16
2007-11-30	17
2007-12-31	17
2008-01-31	14
2008-02-29	10
2008-03-31	9
2008-04-30	8
2008-05-31	9
2008-06-30	8
2008-07-31	8
2008-08-31	8
2008-09-30	9
2008-10-31	6
2008-11-30	6
2008-12-31	6
2009-01-31	3
2009-02-28	3
2009-03-31	4
2009-04-30	4
2009-05-31	5
2009-06-30	6
2009-07-31	6
2009-08-31	1
2009-09-30	4
2009-10-31	5
2009-11-30	8
2009-12-31	7
2010-01-31	6
2010-02-28	8
2010-03-31	9
2010-04-30	9
2010-05-31	8
2010-06-30	8
2010-07-31	9
2010-08-31	9
2010-09-30	10
2010-10-31	7
2010-11-30	7
2010-12-31	9
2011-01-31	7
2011-02-28	8
2011-03-31	9
2011-04-30	9
2011-05-31	10
2011-06-30	9
2011-07-31	9
2011-08-31	9
2011-09-30	8
2011-10-31	8
2011-11-30	7
2011-12-31	7
2012-01-31	7
2012-02-29	7
2012-03-31	9
2012-04-30	9
2012-05-31	8
2012-06-30	9
2012-07-31	9
2012-08-31	9
2012-09-30	10
2012-10-31	11
2012-11-30	11
2012-12-31	12
2013-01-31	12
2013-02-28	8
2013-03-31	8
2013-04-30	8
2013-05-31	8
2013-06-30	6
2013-07-31	7
2013-08-31	7
2013-09-30	7
2013-10-31	8
2013-11-30	102
2013-12-31	179
2014-01-31	260
2014-02-28	430
2014-03-31	525
2014-04-30	723
2014-05-31	968
2014-06-30	1247
2014-07-31	1590
2014-08-31	1548
2014-09-30	1707
2014-10-31	1991
2014-11-30	2149
2014-12-31	2146
2015-01-31	2223
2015-02-28	2238
2015-03-31	2251
2015-04-30	2551
2015-05-31	2503
2015-06-30	2135
2015-07-31	2180
2015-08-31	2035
2015-09-30	2151
2015-10-31	2260
2015-11-30	1967
2015-12-31	1822
2016-01-31	1708
2016-02-29	1825
2016-03-31	2094
2016-04-30	2351
2016-05-31	2136
2016-06-30	2663
2016-07-31	1981
2016-08-31	1902
2016-09-30	1883
2016-10-31	2251
2016-11-30	2217
2016-12-31	2494
2017-01-31	2341
2017-02-28	2181
2017-03-31	2291
2017-04-30	2536
2017-05-31	2905
2017-06-30	3348
2017-07-31	4361
2017-08-31	4812
2017-09-30	5002
2017-10-31	4561
2017-11-30	5126
2017-12-31	5692
2018-01-31	5738
2018-02-28	6000
2018-03-31	6419
2018-04-30	6700
2018-05-31	6603
2018-06-30	6485
2018-07-31	6329
2018-08-31	6468
2018-09-30	6340
2018-10-31	6149
2018-11-30	6247
2018-12-31	5503
2019-01-31	6236
2019-02-28	5905
2019-03-31	5682
2019-04-30	5386
2019-05-31	5303
2019-06-30	5308
2019-07-31	5348
2019-08-31	5343
2019-09-30	5185
2019-10-31	5475
2019-11-30	5119
2019-12-31	4968
2020-01-31	5477
2020-02-29	4771
2020-03-31	4488
2020-04-30	5081
2020-05-31	5978
2020-06-30	5866
2020-07-31	6333
2020-08-31	7192
2020-09-30	7903
2020-10-31	7694
2020-11-30	7778
2020-12-31	7574
2021-01-31	7570
2021-02-28	7318
2021-03-31	10395
2021-04-30	8575
2021-05-31	12806
2021-06-30	13638
2021-07-31	10243
2021-08-31	10620
2021-09-30	10559
2021-10-31	10942
2021-11-30	12505
2021-12-31	13210
2022-01-31	11055
2022-02-28	11163
2022-03-31	11553
2022-04-30	10970
2022-05-31	11657
2022-06-30	11027
2022-07-31	12196
2022-08-31	11638
2022-09-30	11302
2022-10-31	12689
2022-11-30	12688
2022-12-31	12516
2023-01-31	13672
2023-02-28	13367
2023-03-31	13597
2023-04-30	13721
2023-05-31	13443
2023-06-30	12837
2023-07-31	13090
2023-08-31	12833
2023-09-30	12273
2023-10-31	12527
2023-11-30	13313
2023-12-31	13960