Quarterly US dollars
1999-03-31 1930
1999-06-30 1719
1999-09-30 1557
1999-12-31 2454
2000-03-31 1735
2000-06-30 1669
2000-09-30 1752
2000-12-31 1747
2001-03-31 1699
2001-06-30 1665
2001-09-30 1872
2001-12-31 2247
2002-03-31 2120
2002-06-30 2633
2002-09-30 1890
2002-12-31 2043
2003-03-31 2550
2003-06-30 3054
2003-09-30 2515
2003-12-31 2668
2004-03-31 2252
2004-06-30 2496
2004-09-30 2800
2004-12-31 3742
2005-03-31 3086
2005-06-30 3545
2005-09-30 2714
2005-12-31 3041
2006-03-31 3590
2006-06-30 3588
2006-09-30 3612
2006-12-31 4568
2007-03-31 4209
2007-06-30 5039
2007-09-30 4683
2007-12-31 4803
2008-03-31 4888
2008-06-30 5281
2008-09-30 4246
2008-12-31 4033
2009-03-31 4842
2009-06-30 5016
2009-09-30 6266
2009-12-31 5071
2010-03-31 4676
2010-06-30 4663
2010-09-30 4765
2010-12-31 4673
2011-03-31 4320
2011-06-30 4808
2011-09-30 4434
2011-12-31 4841
2012-03-31 4403
2012-06-30 4703
2012-09-30 4105
2012-12-31 4150
2013-03-31 3943
2013-06-30 4482
2013-09-30 2778
2013-12-31 3095
2014-03-31 3048
2014-06-30 1910
2014-09-30 959
2014-12-31 891
2015-03-31 1093
2015-06-30 1322
2015-09-30 2403
2015-12-31 1502
2016-03-31 2030
2016-06-30 2666
2016-09-30 2379
2016-12-31 1799
2017-03-31 2351
2017-06-30 2734
2017-09-30 2503
2017-12-31 2770
2018-03-31 3065
2018-06-30 2927
2018-09-30 3016
2018-12-31 3129
2019-03-31 3291
2019-06-30 2311
2019-09-30 2870
2019-12-31 3291
2020-03-31 3393
2020-06-30 4043
2020-09-30 4261
2020-12-31 2909
2021-03-31 2309
2021-06-30 2702
2021-09-30 2418
2021-12-31 3373
2022-03-31 3022
2022-06-30 3308
2022-09-30 2689
2022-12-31 2944
2023-03-31 2458
2023-06-30 2552
2023-09-30 4318