Quarterly US dollars
1999-03-31 13356
1999-06-30 14037
1999-09-30 19714
1999-12-31 3375
2000-03-31 14591
2000-06-30 25585
2000-09-30 23619
2000-12-31 36020
2001-03-31 20216
2001-06-30 19845
2001-09-30 9130
2001-12-31 8091
2002-03-31 23019
2002-06-30 11602
2002-09-30 12182
2002-12-31 11379
2003-03-31 16791
2003-06-30 18864
2003-09-30 20688
2003-12-31 23225
2004-03-31 37137
2004-06-30 34092
2004-09-30 32141
2004-12-31 34722
2005-03-31 30459
2005-06-30 36109
2005-09-30 33844
2005-12-31 35891
2006-03-31 43847
2006-06-30 43750
2006-09-30 36781
2006-12-31 31197
2007-03-31 29701
2007-06-30 17639
2007-09-30 19712
2007-12-31 12215
2008-03-31 15406
2008-06-30 13210
2008-09-30 14990
2008-12-31 16811
2009-03-31 7308
2009-06-30 8916
2009-09-30 10674
2009-12-31 8638
2010-03-31 9161
2010-06-30 6458
2010-09-30 6172
2010-12-31 6928
2011-03-31 5870
2011-06-30 7938
2011-09-30 9668
2011-12-31 8442
2012-03-31 6380
2012-06-30 9941
2012-09-30 10720
2012-12-31 9499
2013-03-31 12580
2013-06-30 9832
2013-09-30 7806
2013-12-31 5455
2014-03-31 5764
2014-06-30 5379
2014-09-30 4744
2014-12-31 8393
2015-03-31 7119
2015-06-30 7021
2015-09-30 6984
2015-12-31 6087
2016-03-31 6796
2016-06-30 5088
2016-09-30 5711
2016-12-31 5352
2017-03-31 6037
2017-06-30 5770
2017-09-30 7663
2017-12-31 6059
2018-03-31 5430
2018-06-30 5154
2018-09-30 5424
2018-12-31 4862
2019-03-31 5825
2019-06-30 5350
2019-09-30 4942
2019-12-31 5113
2020-03-31 6152
2020-06-30 6397
2020-09-30 6646
2020-12-31 6447
2021-03-31 5330
2021-06-30 3897
2021-09-30 4119
2021-12-31 4084
2022-03-31 3594
2022-06-30 3571
2022-09-30 3710
2022-12-31 4294
2023-03-31 4179
2023-06-30 3309
2023-09-30 1865