Month	US dollars
1999-07-31	0
1999-08-31	12717
1999-09-30	10892
1999-10-31	0
1999-11-30	0
1999-12-31	11907
2000-01-31	0
2000-02-29	0
2000-03-31	8950
2000-04-30	10154
2000-05-31	10527
2000-06-30	11329
2000-07-31	10541
2000-08-31	11650
2000-09-30	11173
2000-10-31	12550
2000-11-30	13610
2000-12-31	14930
2001-01-31	13662
2001-02-28	12753
2001-03-31	13937
2001-04-30	14026
2001-05-31	13661
2001-06-30	13887
2001-07-31	14219
2001-08-31	15854
2001-09-30	16908
2001-10-31	15531
2001-11-30	15462
2001-12-31	15818
2002-01-31	15282
2002-02-28	15519
2002-03-31	16172
2002-04-30	17363
2002-05-31	17002
2002-06-30	17907
2002-07-31	16613
2002-08-31	16735
2002-09-30	17082
2002-10-31	17031
2002-11-30	17461
2002-12-31	18596
2003-01-31	16996
2003-02-28	17070
2003-03-31	17071
2003-04-30	16482
2003-05-31	16997
2003-06-30	16597
2003-07-31	14826
2003-08-31	14683
2003-09-30	15394
2003-10-31	15181
2003-11-30	15276
2003-12-31	16481
2004-01-31	17335
2004-02-29	17183
2004-03-31	16524
2004-04-30	16803
2004-05-31	16787
2004-06-30	17398
2004-07-31	16255
2004-08-31	17913
2004-09-30	18433
2004-10-31	18884
2004-11-30	20248
2004-12-31	21636
2005-01-31	20556
2005-02-28	21415
2005-03-31	21427
2005-04-30	22681
2005-05-31	21722
2005-06-30	21808
2005-07-31	19841
2005-08-31	20777
2005-09-30	21224
2005-10-31	21724
2005-11-30	22366
2005-12-31	23077
2006-01-31	23322
2006-02-28	21674
2006-03-31	23792
2006-04-30	23744
2006-05-31	25118
2006-06-30	23599
2006-07-31	23115
2006-08-31	24404
2006-09-30	24201
2006-10-31	25311
2006-11-30	27057
2006-12-31	26895
2007-01-31	26294
2007-02-28	25878
2007-03-31	26110
2007-04-30	27241
2007-05-31	26583
2007-06-30	26796
2007-07-31	26905
2007-08-31	24852
2007-09-30	26134
2007-10-31	27305
2007-11-30	28114
2007-12-31	28885
2008-01-31	27183
2008-02-29	27291
2008-03-31	28375
2008-04-30	27446
2008-05-31	26325
2008-06-30	26528
2008-07-31	25069
2008-08-31	24018
2008-09-30	22716
2008-10-31	20434
2008-11-30	20806
2008-12-31	23985
2009-01-31	20602
2009-02-28	20473
2009-03-31	21554
2009-04-30	21486
2009-05-31	24175
2009-06-30	23544
2009-07-31	22822
2009-08-31	22572
2009-09-30	22606
2009-10-31	22503
2009-11-30	23072
2009-12-31	22207
2010-01-31	20583
2010-02-28	18834
2010-03-31	19216
2010-04-30	20488
2010-05-31	19190
2010-06-30	18048
2010-07-31	19752
2010-08-31	19986
2010-09-30	21940
2010-10-31	21413
2010-11-30	20579
2010-12-31	21423
2011-01-31	23706
2011-02-28	25034
2011-03-31	23709
2011-04-30	26314
2011-05-31	27276
2011-06-30	28123
2011-07-31	29100
2011-08-31	30498
2011-09-30	28538
2011-10-31	30523
2011-11-30	29642
2011-12-31	27519
2012-01-31	28099
2012-02-29	29162
2012-03-31	28583
2012-04-30	29250
2012-05-31	27293
2012-06-30	27829
2012-07-31	26677
2012-08-31	28314
2012-09-30	28730
2012-10-31	29127
2012-11-30	29148
2012-12-31	29827
2013-01-31	31242
2013-02-28	28977
2013-03-31	30275
2013-04-30	29973
2013-05-31	30503
2013-06-30	32129
2013-07-31	32290
2013-08-31	32290
2013-09-30	33717
2013-10-31	34598
2013-11-30	36234
2013-12-31	36007
2014-01-31	35340
2014-02-28	36398
2014-03-31	38043
2014-04-30	36660
2014-05-31	37962
2014-06-30	38166
2014-07-31	35594
2014-08-31	35784
2014-09-30	33873
2014-10-31	35848
2014-11-30	36631
2014-12-31	33934
2015-01-31	33236
2015-02-28	34414
2015-03-31	40250
2015-04-30	39310
2015-05-31	41825
2015-06-30	41267
2015-07-31	41541
2015-08-31	43126
2015-09-30	42848
2015-10-31	43669
2015-11-30	41629
2015-12-31	43637
2016-01-31	46244
2016-02-29	45562
2016-03-31	48783
2016-04-30	47152
2016-05-31	45562
2016-06-30	47946
2016-07-31	48628
2016-08-31	47960
2016-09-30	49758
2016-10-31	46303
2016-11-30	46293
2016-12-31	44805
2017-01-31	46566
2017-02-28	47597
2017-03-31	51542
2017-04-30	51423
2017-05-31	52944
2017-06-30	57461
2017-07-31	57043
2017-08-31	56358
2017-09-30	55263
2017-10-31	52537
2017-11-30	55350
2017-12-31	58572
2018-01-31	55701
2018-02-28	55453
2018-03-31	62903
2018-04-30	55034
2018-05-31	53459
2018-06-30	57533
2018-07-31	52472
2018-08-31	53149
2018-09-30	55984
2018-10-31	57611
2018-11-30	69675
2018-12-31	71195
2019-01-31	69623
2019-02-28	65638
2019-03-31	61695
2019-04-30	53105
2019-05-31	50464
2019-06-30	49505
2019-07-31	47202
2019-08-31	47718
2019-09-30	51970
2019-10-31	61388
2019-11-30	60094
2019-12-31	69863
2020-01-31	52023
2020-02-29	52444
2020-03-31	52933
2020-04-30	48281
2020-05-31	48262
2020-06-30	46545
2020-07-31	47215
2020-08-31	48276
2020-09-30	46263
2020-10-31	43327
2020-11-30	53851
2020-12-31	61631
2021-01-31	51608
2021-02-28	48495
2021-03-31	47055
2021-04-30	45717
2021-05-31	47391
2021-06-30	45382
2021-07-31	48123
2021-08-31	49002
2021-09-30	49152
2021-10-31	47421
2021-11-30	48026
2021-12-31	49114
2022-01-31	46090
2022-02-28	43828
2022-03-31	43685
2022-04-30	39010
2022-05-31	41391
2022-06-30	41264
2022-07-31	41271
2022-08-31	43399
2022-09-30	39149
2022-10-31	42421
2022-11-30	45610
2022-12-31	46929
2023-01-31	44853
2023-02-28	40723
2023-03-31	41755
2023-04-30	43505
2023-05-31	39097
2023-06-30	39144
2023-07-31	41072
2023-08-31	39603
2023-09-30	37695
2023-10-31	37094
2023-11-30	38796
2023-12-31	40255