Month	US dollars
1999-07-31	2698
1999-08-31	2884
1999-09-30	1962
1999-10-31	3332
1999-11-30	8299
1999-12-31	8270
2000-01-31	3704
2000-02-29	2569
2000-03-31	3360
2000-04-30	5274
2000-05-31	6326
2000-06-30	7692
2000-07-31	7192
2000-08-31	7330
2000-09-30	8536
2000-10-31	7713
2000-11-30	9101
2000-12-31	9438
2001-01-31	9183
2001-02-28	6157
2001-03-31	7446
2001-04-30	8458
2001-05-31	8297
2001-06-30	8169
2001-07-31	6662
2001-08-31	7545
2001-09-30	7552
2001-10-31	6299
2001-11-30	6827
2001-12-31	5702
2002-01-31	4071
2002-02-28	4190
2002-03-31	4250
2002-04-30	5634
2002-05-31	5603
2002-06-30	6451
2002-07-31	6861
2002-08-31	8348
2002-09-30	7585
2002-10-31	7367
2002-11-30	7540
2002-12-31	4643
2003-01-31	2775
2003-02-28	4715
2003-03-31	5812
2003-04-30	4853
2003-05-31	5273
2003-06-30	4198
2003-07-31	4964
2003-08-31	5149
2003-09-30	5928
2003-10-31	5442
2003-11-30	6142
2003-12-31	5692
2004-01-31	5637
2004-02-29	5053
2004-03-31	5516
2004-04-30	5355
2004-05-31	4919
2004-06-30	4573
2004-07-31	3215
2004-08-31	3360
2004-09-30	3473
2004-10-31	3437
2004-11-30	3593
2004-12-31	3842
2005-01-31	4109
2005-02-28	4326
2005-03-31	3297
2005-04-30	4087
2005-05-31	4125
2005-06-30	3463
2005-07-31	3589
2005-08-31	3313
2005-09-30	3622
2005-10-31	3076
2005-11-30	3330
2005-12-31	4891
2006-01-31	3297
2006-02-28	4526
2006-03-31	4739
2006-04-30	4491
2006-05-31	4941
2006-06-30	3744
2006-07-31	4120
2006-08-31	3812
2006-09-30	4766
2006-10-31	4217
2006-11-30	4078
2006-12-31	4244
2007-01-31	4311
2007-02-28	3996
2007-03-31	4222
2007-04-30	3539
2007-05-31	3507
2007-06-30	2876
2007-07-31	2991
2007-08-31	3118
2007-09-30	4602
2007-10-31	4248
2007-11-30	4115
2007-12-31	4248
2008-01-31	6009
2008-02-29	4818
2008-03-31	6974
2008-04-30	7472
2008-05-31	7562
2008-06-30	7413
2008-07-31	4864
2008-08-31	6241
2008-09-30	5782
2008-10-31	2894
2008-11-30	1366
2008-12-31	2144
2009-01-31	834
2009-02-28	570
2009-03-31	496
2009-04-30	725
2009-05-31	674
2009-06-30	1128
2009-07-31	1414
2009-08-31	1475
2009-09-30	1190
2009-10-31	1356
2009-11-30	1588
2009-12-31	2138
2010-01-31	2336
2010-02-28	3027
2010-03-31	6223
2010-04-30	5723
2010-05-31	4562
2010-06-30	3038
2010-07-31	2763
2010-08-31	2948
2010-09-30	4426
2010-10-31	2633
2010-11-30	3020
2010-12-31	2391
2011-01-31	4112
2011-02-28	4257
2011-03-31	3750
2011-04-30	4399
2011-05-31	5167
2011-06-30	4885
2011-07-31	5197
2011-08-31	6283
2011-09-30	7469
2011-10-31	7916
2011-11-30	7431
2011-12-31	5872
2012-01-31	5311
2012-02-29	6153
2012-03-31	6094
2012-04-30	7344
2012-05-31	7728
2012-06-30	7424
2012-07-31	7620
2012-08-31	6431
2012-09-30	5123
2012-10-31	4133
2012-11-30	4080
2012-12-31	4172
2013-01-31	5766
2013-02-28	4431
2013-03-31	5626
2013-04-30	5155
2013-05-31	4660
2013-06-30	4586
2013-07-31	4148
2013-08-31	4452
2013-09-30	4400
2013-10-31	4799
2013-11-30	4765
2013-12-31	5253
2014-01-31	6508
2014-02-28	6258
2014-03-31	9772
2014-04-30	4441
2014-05-31	4446
2014-06-30	2784
2014-07-31	4308
2014-08-31	5023
2014-09-30	5678
2014-10-31	6708
2014-11-30	5670
2014-12-31	3897
2015-01-31	4485
2015-02-28	5411
2015-03-31	8528
2015-04-30	6056
2015-05-31	7051
2015-06-30	3785
2015-07-31	6412
2015-08-31	5975
2015-09-30	6752
2015-10-31	8742
2015-11-30	6952
2015-12-31	7065
2016-01-31	8454
2016-02-29	4962
2016-03-31	3818
2016-04-30	12907
2016-05-31	9316
2016-06-30	6543
2016-07-31	12416
2016-08-31	12432
2016-09-30	10108
2016-10-31	12341
2016-11-30	9730
2016-12-31	7056
2017-01-31	10277
2017-02-28	8984
2017-03-31	8824
2017-04-30	16223
2017-05-31	13397
2017-06-30	6962
2017-07-31	17582
2017-08-31	14938
2017-09-30	6778
2017-10-31	11768
2017-11-30	8125
2017-12-31	12557
2018-01-31	20639
2018-02-28	16158
2018-03-31	15702
2018-04-30	15145
2018-05-31	17164
2018-06-30	12354
2018-07-31	14130
2018-08-31	16648
2018-09-30	14756
2018-10-31	15421
2018-11-30	9671
2018-12-31	5368
2019-01-31	9343
2019-02-28	6602
2019-03-31	5761
2019-04-30	17645
2019-05-31	14473
2019-06-30	13351
2019-07-31	19609
2019-08-31	18425
2019-09-30	4078
2019-10-31	8309
2019-11-30	15478
2019-12-31	11761
2020-01-31	17700
2020-02-29	12045
2020-03-31	7882
2020-04-30	9994
2020-05-31	8600
2020-06-30	6937
2020-07-31	10302
2020-08-31	9750
2020-09-30	8885
2020-10-31	12291
2020-11-30	8308
2020-12-31	3838
2021-01-31	11198
2021-02-28	14684
2021-03-31	14287
2021-04-30	14111
2021-05-31	12116
2021-06-30	14443
2021-07-31	13487
2021-08-31	11207
2021-09-30	13510
2021-10-31	9153
2021-11-30	10546
2021-12-31	10525
2022-01-31	9793
2022-02-28	14681
2022-03-31	11356
2022-04-30	9389
2022-05-31	7735
2022-06-30	8722
2022-07-31	8666
2022-08-31	6700
2022-09-30	8648
2022-10-31	9348
2022-11-30	6610
2022-12-31	6435
2023-01-31	8576
2023-02-28	8878
2023-03-31	12218
2023-04-30	14180
2023-05-31	11518
2023-06-30	11576
2023-07-31	15171
2023-08-31	17202
2023-09-30	12739
2023-10-31	12264
2023-11-30	11912
2023-12-31	11641