Quarterly US dollars
1999-03-31 21529
1999-06-30 22809
1999-09-30 21877
1999-12-31 20673
2000-03-31 21351
2000-06-30 20117
2000-09-30 18101
2000-12-31 17586
2001-03-31 16392
2001-06-30 18071
2001-09-30 16575
2001-12-31 17770
2002-03-31 15550
2002-06-30 19160
2002-09-30 18390
2002-12-31 21936
2003-03-31 18866
2003-06-30 19808
2003-09-30 19209
2003-12-31 21788
2004-03-31 18841
2004-06-30 20233
2004-09-30 21434
2004-12-31 24488
2005-03-31 26463
2005-06-30 25522
2005-09-30 22151
2005-12-31 27691
2006-03-31 21871
2006-06-30 24875
2006-09-30 23794
2006-12-31 28784
2007-03-31 28630
2007-06-30 29501
2007-09-30 31189
2007-12-31 39755
2008-03-31 40576
2008-06-30 34376
2008-09-30 36810
2008-12-31 32560
2009-03-31 36974
2009-06-30 43650
2009-09-30 46928
2009-12-31 43780
2010-03-31 41462
2010-06-30 39724
2010-09-30 42300
2010-12-31 43399
2011-03-31 48122
2011-06-30 44066
2011-09-30 44939
2011-12-31 41436
2012-03-31 42112
2012-06-30 46153
2012-09-30 38709
2012-12-31 41331
2013-03-31 36297
2013-06-30 39914
2013-09-30 36042
2013-12-31 40745
2014-03-31 39080
2014-06-30 44998
2014-09-30 37871
2014-12-31 37639
2015-03-31 36617
2015-06-30 39573
2015-09-30 38545
2015-12-31 41784
2016-03-31 35018
2016-06-30 43593
2016-09-30 39390
2016-12-31 43543
2017-03-31 37742
2017-06-30 38268
2017-09-30 41686
2017-12-31 40915
2018-03-31 40120
2018-06-30 35730
2018-09-30 36292
2018-12-31 38366
2019-03-31 37593
2019-06-30 36293
2019-09-30 38236
2019-12-31 39543
2020-03-31 43211
2020-06-30 42530
2020-09-30 47672
2020-12-31 55577
2021-03-31 55989
2021-06-30 53378
2021-09-30 56197
2021-12-31 64399
2022-03-31 69648
2022-06-30 74194
2022-09-30 83579
2022-12-31 83180
2023-03-31 79660
2023-06-30 75089
2023-09-30 76750