Quarterly US dollars
1999-09-30 18414
1999-12-31 17808
2000-03-31 17875
2000-06-30 20375
2000-09-30 22206
2000-12-31 24897
2001-03-31 23331
2001-06-30 21801
2001-09-30 22272
2001-12-31 20920
2002-03-31 21931
2002-06-30 25310
2002-09-30 23973
2002-12-31 27020
2003-03-31 26590
2003-06-30 27328
2003-09-30 27561
2003-12-31 29052
2004-03-31 29126
2004-06-30 28948
2004-09-30 29505
2004-12-31 33113
2005-03-31 30106
2005-06-30 29483
2005-09-30 29755
2005-12-31 30050
2006-03-31 29757
2006-06-30 31168
2006-09-30 29679
2006-12-31 29950
2007-03-31 30165
2007-06-30 28057
2007-09-30 32638
2007-12-31 36521
2008-03-31 40265
2008-06-30 37539
2008-09-30 34411
2008-12-31 35446
2009-03-31 34252
2009-06-30 35380
2009-09-30 34806
2009-12-31 33848
2010-03-31 35278
2010-06-30 36591
2010-09-30 40992
2010-12-31 41914
2011-03-31 45329
2011-06-30 48325
2011-09-30 47424
2011-12-31 48153
2012-03-31 50185
2012-06-30 53046
2012-09-30 55251
2012-12-31 57745
2013-03-31 55206
2013-06-30 58129
2013-09-30 61748
2013-12-31 62348
2014-03-31 64787
2014-06-30 70074
2014-09-30 66428
2014-12-31 68699
2015-03-31 79433
2015-06-30 85026
2015-09-30 90779
2015-12-31 91838
2016-03-31 98975
2016-06-30 101622
2016-09-30 101577
2016-12-31 94821
2017-03-31 96037
2017-06-30 102742
2017-09-30 102145
2017-12-31 101705
2018-03-31 103137
2018-06-30 101679
2018-09-30 104952
2018-12-31 102894
2019-03-31 105536
2019-06-30 110918
2019-09-30 108820
2019-12-31 112696
2020-03-31 114403
2020-06-30 114876
2020-09-30 112630
2020-12-31 115426
2021-03-31 113014
2021-06-30 113902
2021-09-30 111291
2021-12-31 104276
2022-03-31 97288
2022-06-30 88329
2022-09-30 83914
2022-12-31 86802
2023-03-31 88705
2023-06-30 91709
2023-09-30 89181
2023-12-31 92911