Quarterly US dollars
1999-03-31 6244
1999-06-30 7208
1999-09-30 9124
1999-12-31 7738
2000-03-31 9997
2000-06-30 4362
2000-09-30 7007
2000-12-31 8742
2001-03-31 9114
2001-06-30 9412
2001-09-30 10631
2001-12-31 11382
2002-03-31 9504
2002-06-30 12370
2002-09-30 10841
2002-12-31 10538
2003-03-31 15058
2003-06-30 16194
2003-09-30 13847
2003-12-31 11245
2004-03-31 16481
2004-06-30 15081
2004-09-30 13378
2004-12-31 13835
2005-03-31 16354
2005-06-30 16697
2005-09-30 13722
2005-12-31 8311
2006-03-31 7020
2006-06-30 6758
2006-09-30 12004
2006-12-31 17300
2007-03-31 15707
2007-06-30 19104
2007-09-30 20959
2007-12-31 21037
2008-03-31 20373
2008-06-30 21113
2008-09-30 19296
2008-12-31 32281
2009-03-31 33060
2009-06-30 29362
2009-09-30 32210
2009-12-31 24593
2010-03-31 25370
2010-06-30 19201
2010-09-30 25576
2010-12-31 18026
2011-03-31 25457
2011-06-30 21005
2011-09-30 22825
2011-12-31 23492
2012-03-31 18529
2012-06-30 18898
2012-09-30 18517
2012-12-31 17383
2013-03-31 19555
2013-06-30 18596
2013-09-30 16429
2013-12-31 14740
2014-03-31 19109
2014-06-30 23401
2014-09-30 17224
2014-12-31 14183
2015-03-31 15622
2015-06-30 16131
2015-09-30 14502
2015-12-31 16823
2016-03-31 15071
2016-06-30 14023
2016-09-30 13850
2016-12-31 15896
2017-03-31 16525
2017-06-30 12572
2017-09-30 14655
2017-12-31 14412
2018-03-31 18720
2018-06-30 21498
2018-09-30 13843
2018-12-31 12078
2019-03-31 16869
2019-06-30 12635
2019-09-30 15418
2019-12-31 13051
2020-03-31 17756
2020-06-30 13955
2020-09-30 12682
2020-12-31 14299
2021-03-31 12811
2021-06-30 11207
2021-09-30 10367
2021-12-31 10696
2022-03-31 9405
2022-06-30 9238
2022-09-30 9603
2022-12-31 7634
2023-03-31 9541
2023-06-30 10315
2023-09-30 10640