Quarterly US dollars
1999-03-31 50746
1999-06-30 36437
1999-09-30 42892
1999-12-31 49158
2000-03-31 51827
2000-06-30 54022
2000-09-30 48416
2000-12-31 56283
2001-03-31 62519
2001-06-30 63152
2001-09-30 48166
2001-12-31 47575
2002-03-31 53828
2002-06-30 67030
2002-09-30 63842
2002-12-31 63398
2003-03-31 72862
2003-06-30 67488
2003-09-30 40615
2003-12-31 59111
2004-03-31 65689
2004-06-30 67245
2004-09-30 70954
2004-12-31 72931
2005-03-31 79900
2005-06-30 66234
2005-09-30 74614
2005-12-31 69637
2006-03-31 61404
2006-06-30 57798
2006-09-30 66752
2006-12-31 78254
2007-03-31 99498
2007-06-30 116115
2007-09-30 120017
2007-12-31 108379
2008-03-31 128081
2008-06-30 99216
2008-09-30 103230
2008-12-31 92379
2009-03-31 100243
2009-06-30 79285
2009-09-30 79064
2009-12-31 76225
2010-03-31 74154
2010-06-30 71774
2010-09-30 74553
2010-12-31 66556
2011-03-31 64701
2011-06-30 61717
2011-09-30 58701
2011-12-31 53294
2012-03-31 59611
2012-06-30 62538
2012-09-30 61031
2012-12-31 57480
2013-03-31 54303
2013-06-30 51043
2013-09-30 49996
2013-12-31 48612
2014-03-31 54893
2014-06-30 66824
2014-09-30 55084
2014-12-31 57144
2015-03-31 61370
2015-06-30 53967
2015-09-30 57377
2015-12-31 55967
2016-03-31 62864
2016-06-30 60133
2016-09-30 60854
2016-12-31 50978
2017-03-31 43668
2017-06-30 48705
2017-09-30 48545
2017-12-31 47842
2018-03-31 50329
2018-06-30 49806
2018-09-30 45521
2018-12-31 44658
2019-03-31 36796
2019-06-30 38085
2019-09-30 41961
2019-12-31 45873
2020-03-31 56630
2020-06-30 46327
2020-09-30 48879
2020-12-31 43152
2021-03-31 47014
2021-06-30 45785
2021-09-30 46667
2021-12-31 48500
2022-03-31 49993
2022-06-30 48062
2022-09-30 38873
2022-12-31 46608
2023-03-31 42613
2023-06-30 44952
2023-09-30 42491