Month	US dollars
1996-02-29	2436
1996-03-31	2506
1996-04-30	2506
1996-05-31	2496
1996-06-30	2496
1996-07-31	2488
1996-08-31	2488
1996-09-30	2488
1996-10-31	2488
1996-11-30	2468
1996-12-31	2468
1997-01-31	2395
1997-02-28	2384
1997-03-31	2227
1997-04-30	2211
1997-05-31	2212
1997-06-30	2212
1997-07-31	2229
1997-08-31	2213
1997-09-30	2254
1997-10-31	2254
1997-11-30	2393
1997-12-31	3040
1998-01-31	3040
1998-02-28	3040
1998-03-31	2935
1998-04-30	2935
1998-05-31	3086
1998-06-30	3087
1998-07-31	3517
1998-08-31	3516
1998-09-30	3654
1998-10-31	3651
1998-11-30	3711
1998-12-31	4157
1999-01-31	4157
1999-02-28	5267
1999-03-31	5180
1999-04-30	5323
1999-05-31	5323
1999-06-30	5323
1999-07-31	5354
1999-08-31	5475
1999-09-30	5599
1999-10-31	5571
1999-11-30	5341
1999-12-31	5270
2000-01-31	5188
2000-02-29	5045
2000-03-31	5155
2000-04-30	4375
2000-05-31	4355
2000-06-30	4324
2000-07-31	4253
2000-08-31	3920
2000-09-30	3906
2000-10-31	3806
2000-11-30	3780
2000-12-31	4298
2001-01-31	4328
2001-02-28	4262
2001-03-31	4079
2001-04-30	3929
2001-05-31	4116
2001-06-30	4291
2001-07-31	4184
2001-08-31	4355
2001-09-30	5061
2001-10-31	4823
2001-11-30	4802
2001-12-31	5064
2002-01-31	4877
2002-02-28	4899
2002-03-31	4902
2002-04-30	4527
2002-05-31	4646
2002-06-30	5601
2002-07-31	5496
2002-08-31	5521
2002-09-30	5879
2002-10-31	5842
2002-11-30	5816
2002-12-31	6207
2003-01-31	6211
2003-02-28	6121
2003-03-31	6268
2003-04-30	6264
2003-05-31	6349
2003-06-30	6500
2003-07-31	6417
2003-08-31	6371
2003-09-30	6791
2003-10-31	6690
2003-11-30	6702
2003-12-31	6332
2004-01-31	6308
2004-02-29	6298
2004-03-31	6322
2004-04-30	5957
2004-05-31	6019
2004-06-30	5675
2004-07-31	5577
2004-08-31	5594
2004-09-30	5514
2004-10-31	5507
2004-11-30	5609
2004-12-31	5533
2005-01-31	5365
2005-02-28	5277
2005-03-31	5198
2005-04-30	5216
2005-05-31	4567
2005-06-30	4302
2005-07-31	3685
2005-08-31	3702
2005-09-30	3621
2005-10-31	3612
2005-11-30	3394
2005-12-31	1765
2006-01-31	1782
2006-02-28	1767
2006-03-31	1771
2006-04-30	1805
2006-05-31	1765
2006-06-30	2262
2006-07-31	2266
2006-08-31	1995
2006-09-30	1935
2006-10-31	1643
2006-11-30	1492
2006-12-31	1414
2007-01-31	1379
2007-02-28	1212
2007-03-31	1210
2007-04-30	1191
2007-05-31	1133
2007-06-30	1135
2007-07-31	1110
2007-08-31	1107
2007-09-30	1103
2007-10-31	1114
2007-11-30	1111
2007-12-31	1099
2008-01-31	1102
2008-02-29	1096
2008-03-31	1115
2008-04-30	1141
2008-05-31	1365
2008-06-30	1366
2008-07-31	1293
2008-08-31	1252
2008-09-30	1242
2008-10-31	1147
2008-11-30	2358
2008-12-31	2350
2009-01-31	2190
2009-02-28	2152
2009-03-31	2431
2009-04-30	2614
2009-05-31	3282
2009-06-30	3510
2009-07-31	3458
2009-08-31	3479
2009-09-30	3944
2009-10-31	3957
2009-11-30	3424
2009-12-31	3333
2010-01-31	3304
2010-02-28	3229
2010-03-31	3515
2010-04-30	3498
2010-05-31	4161
2010-06-30	4077
2010-07-31	4186
2010-08-31	4078
2010-09-30	4858
2010-10-31	4901
2010-11-30	4474
2010-12-31	4892
2011-01-31	5214
2011-02-28	5250
2011-03-31	7039
2011-04-30	7191
2011-05-31	7107
2011-06-30	7102
2011-07-31	7522
2011-08-31	7570
2011-09-30	7680
2011-10-31	7799
2011-11-30	7630
2011-12-31	8441
2012-01-31	8528
2012-02-29	8967
2012-03-31	8969
2012-04-30	9119
2012-05-31	8882
2012-06-30	9044
2012-07-31	9013
2012-08-31	9049
2012-09-30	9201
2012-10-31	9067
2012-11-30	8769
2012-12-31	8863
2013-01-31	9190
2013-02-28	8624
2013-03-31	8641
2013-04-30	8702
2013-05-31	8300
2013-06-30	8518
2013-07-31	8650
2013-08-31	8200
2013-09-30	8325
2013-10-31	7884
2013-11-30	7910
2013-12-31	7991
2014-01-31	7813
2014-02-28	7927
2014-03-31	7708
2014-04-30	7729
2014-05-31	7518
2014-06-30	7838
2014-07-31	7765
2014-08-31	7530
2014-09-30	7203
2014-10-31	7182
2014-11-30	6969
2014-12-31	5358
2015-01-31	5074
2015-02-28	4668
2015-03-31	4345
2015-04-30	4430
2015-05-31	4262
2015-06-30	4272
2015-07-31	4236
2015-08-31	4404
2015-09-30	4324
2015-10-31	4254
2015-11-30	4154
2015-12-31	4197
2016-01-31	4181
2016-02-29	7281
2016-03-31	7426
2016-04-30	7389
2016-05-31	7301
2016-06-30	7280
2016-07-31	7098
2016-08-31	7091
2016-09-30	7314
2016-10-31	7356
2016-11-30	6773
2016-12-31	6678
2017-01-31	6772
2017-02-28	6557
2017-03-31	6571
2017-04-30	6892
2017-05-31	6950
2017-06-30	6968
2017-07-31	6657
2017-08-31	6757
2017-09-30	6756
2017-10-31	6617
2017-11-30	6490
2017-12-31	5939
2018-01-31	5800
2018-02-28	5735
2018-03-31	5766
2018-04-30	5705
2018-05-31	5618
2018-06-30	6305
2018-07-31	6249
2018-08-31	6306
2018-09-30	6279
2018-10-31	6494
2018-11-30	6497
2018-12-31	6434
2019-01-31	6480
2019-02-28	6467
2019-03-31	6422
2019-04-30	7048
2019-05-31	6958
2019-06-30	6986
2019-07-31	7197
2019-08-31	7139
2019-09-30	7063
2019-10-31	7115
2019-11-30	6439
2019-12-31	6486
2020-01-31	6425
2020-02-29	6400
2020-03-31	6359
2020-04-30	6479
2020-05-31	6483
2020-06-30	6638
2020-07-31	6959
2020-08-31	6949
2020-09-30	6854
2020-10-31	6874
2020-11-30	6964
2020-12-31	7263
2021-01-31	7266
2021-02-28	7254
2021-03-31	6956
2021-04-30	7048
2021-05-31	7084
2021-06-30	6987
2021-07-31	6998
2021-08-31	6976
2021-09-30	6848
2021-10-31	7160
2021-11-30	7087
2021-12-31	7081
2022-01-31	7041
2022-02-28	7410
2022-03-31	7294
2022-04-30	7092
2022-05-31	7121
2022-06-30	7004
2022-07-31	6982
2022-08-31	6864
2022-09-30	6724
2022-10-31	7045
2022-11-30	7218
2022-12-31	7306
2023-01-31	7403
2023-02-28	7295
2023-03-31	7345
2023-04-30	7355
2023-05-31	7248
2023-06-30	7262
2023-07-31	7332
2023-08-31	7261
2023-09-30	7180
2023-10-31	7129
2023-11-30	7232
2023-12-31	7278