Month	US dollars
1999-08-31	5
1999-09-30	5
1999-12-31	73
2000-03-31	73
2000-04-30	3
2000-05-31	4
2000-06-30	4
2000-07-31	3
2000-08-31	4
2000-09-30	4
2000-10-31	4
2000-11-30	4
2000-12-31	4
2001-01-31	4
2001-02-28	4
2001-03-31	4
2001-04-30	4
2001-05-31	4
2001-06-30	86
2001-07-31	89
2001-08-31	104
2001-09-30	127
2001-10-31	125
2001-11-30	125
2001-12-31	54
2002-01-31	215
2002-02-28	173
2002-03-31	509
2002-04-30	302
2002-05-31	477
2002-06-30	533
2002-07-31	1
2002-08-31	1
2002-09-30	1
2002-10-31	1
2002-11-30	1
2002-12-31	1
2003-01-31	1
2003-02-28	1
2003-03-31	1
2003-04-30	1
2003-05-31	18
2003-06-30	31
2003-07-31	34
2003-08-31	33
2003-09-30	35
2003-10-31	56
2003-11-30	58
2003-12-31	70
2004-01-31	145
2004-02-29	209
2004-03-31	219
2004-04-30	378
2004-05-31	574
2004-06-30	529
2004-07-31	698
2004-08-31	729
2004-09-30	1012
2004-10-31	1237
2004-11-30	1292
2004-12-31	1298
2005-01-31	1303
2005-02-28	1314
2005-03-31	1276
2005-04-30	1448
2005-05-31	1486
2005-06-30	1670
2005-07-31	1355
2005-08-31	1358
2005-09-30	1418
2005-10-31	1196
2005-11-30	1194
2005-12-31	1189
2006-01-31	1300
2006-02-28	1392
2006-03-31	1243
2006-04-30	918
2006-05-31	1101
2006-06-30	935
2006-07-31	778
2006-08-31	771
2006-09-30	784
2006-10-31	808
2006-11-30	821
2006-12-31	822
2007-01-31	891
2007-02-28	1088
2007-03-31	922
2007-04-30	1096
2007-05-31	1111
2007-06-30	1185
2007-07-31	1372
2007-08-31	1412
2007-09-30	1511
2007-10-31	1520
2007-11-30	1424
2007-12-31	1412
2008-01-31	1240
2008-02-29	578
2008-03-31	445
2008-04-30	462
2008-05-31	308
2008-06-30	310
2008-07-31	105
2008-08-31	5
2008-09-30	4
2008-10-31	3
2008-11-30	9
2008-12-31	11
2009-01-31	6
2009-02-28	8
2009-03-31	2
2009-04-30	2
2009-05-31	2
2009-06-30	2
2009-07-31	2
2009-08-31	6
2009-09-30	3
2009-10-31	4
2009-11-30	3
2009-12-31	6
2010-01-31	5
2010-02-28	6
2010-03-31	6
2010-04-30	5
2010-05-31	5
2010-06-30	7
2010-07-31	8
2010-08-31	4
2010-09-30	5
2010-10-31	7
2010-11-30	6
2010-12-31	4
2011-01-31	7
2011-02-28	5
2011-03-31	6
2011-04-30	4
2011-05-31	4
2011-06-30	2
2011-07-31	3
2011-08-31	7
2011-09-30	6
2011-10-31	6
2011-11-30	6
2011-12-31	6
2012-01-31	7
2012-02-29	6
2012-03-31	8
2012-04-30	9
2012-05-31	9
2012-06-30	10
2012-07-31	7
2012-08-31	7
2012-09-30	9
2012-10-31	5
2012-11-30	5
2012-12-31	7
2013-01-31	8
2013-02-28	13
2013-03-31	11
2013-04-30	10
2013-05-31	7
2013-06-30	11
2013-07-31	14
2013-08-31	8
2013-09-30	7
2013-10-31	7
2013-11-30	6
2013-12-31	4
2014-01-31	11
2014-02-28	13
2014-03-31	35
2014-04-30	2872
2014-05-31	3439
2014-06-30	3527
2014-07-31	1501
2014-08-31	601
2014-09-30	485
2014-10-31	482
2014-11-30	50
2014-12-31	503
2015-01-31	282
2015-02-28	43
2015-03-31	1577
2015-04-30	1803
2015-05-31	1125
2015-06-30	796
2015-07-31	815
2015-08-31	2005
2015-09-30	1738
2015-10-31	1253
2015-11-30	1411
2015-12-31	804
2016-01-31	515
2016-02-29	535
2016-03-31	367
2016-04-30	1370
2016-05-31	42
2016-06-30	2
2016-07-31	2
2016-08-31	460
2016-09-30	388
2016-10-31	1848
2016-11-30	3311
2016-12-31	4293
2017-01-31	4289
2017-02-28	4363
2017-03-31	3038
2017-04-30	2871
2017-05-31	2684
2017-06-30	3119
2017-07-31	2090
2017-08-31	2681
2017-09-30	984
2017-10-31	901
2017-11-30	2636
2017-12-31	3423
2018-01-31	2082
2018-02-28	835
2018-03-31	1379
2018-04-30	1386
2018-05-31	286
2018-06-30	1187
2018-07-31	1102
2018-08-31	400
2018-09-30	1243
2018-10-31	878
2018-11-30	1
2018-12-31	332
2019-01-31	2500
2019-02-28	2847
2019-03-31	3588
2019-04-30	1660
2019-05-31	1496
2019-06-30	3244
2019-07-31	777
2019-08-31	936
2019-09-30	2058
2019-10-31	2107
2019-11-30	617
2019-12-31	2395
2020-01-31	1852
2020-02-29	349
2020-03-31	312
2020-04-30	2767
2020-05-31	4633
2020-06-30	4053
2020-07-31	7503
2020-08-31	8668
2020-09-30	9529
2020-10-31	9824
2020-11-30	10918
2020-12-31	12218
2021-01-31	7771
2021-02-28	6562
2021-03-31	8182
2021-04-30	9559
2021-05-31	11159
2021-06-30	11728
2021-07-31	11406
2021-08-31	11315
2021-09-30	10695
2021-10-31	9161
2021-11-30	12526
2021-12-31	14170
2022-01-31	9884
2022-02-28	6686
2022-03-31	5574
2022-04-30	5264
2022-05-31	2878
2022-06-30	1649
2022-07-31	2253
2022-08-31	2184
2022-09-30	1760
2022-10-31	2415
2022-11-30	2953
2022-12-31	2317
2023-01-31	2764
2023-02-28	2837
2023-03-31	2520
2023-04-30	1454
2023-05-31	1379
2023-06-30	3259
2023-07-31	3979
2023-08-31	1244
2023-09-30	769
2023-10-31	1236
2023-11-30	2163
2023-12-31	2234