Quarterly US dollars
1999-03-31 4841
1999-06-30 4756
1999-09-30 5290
1999-12-31 4669
2000-03-31 4518
2000-06-30 5567
2000-09-30 7404
2000-12-31 6017
2001-03-31 7901
2001-06-30 4931
2001-09-30 4668
2001-12-31 4766
2002-03-31 4286
2002-06-30 4564
2002-09-30 4157
2002-12-31 4239
2003-03-31 4178
2003-06-30 5528
2003-09-30 4382
2003-12-31 4503
2004-03-31 6291
2004-06-30 5683
2004-09-30 4716
2004-12-31 5943
2005-03-31 6665
2005-06-30 6209
2005-09-30 5655
2005-12-31 4310
2006-03-31 5692
2006-06-30 8357
2006-09-30 11428
2006-12-31 15613
2007-03-31 16893
2007-06-30 17474
2007-09-30 24762
2007-12-31 15651
2008-03-31 21315
2008-06-30 17334
2008-09-30 8676
2008-12-31 9898
2009-03-31 9939
2009-06-30 8015
2009-09-30 7541
2009-12-31 7881
2010-03-31 8871
2010-06-30 9487
2010-09-30 8677
2010-12-31 9297
2011-03-31 15329
2011-06-30 11012
2011-09-30 11517
2011-12-31 7616
2012-03-31 10731
2012-06-30 9348
2012-09-30 10307
2012-12-31 9596
2013-03-31 9039
2013-06-30 9281
2013-09-30 10017
2013-12-31 8267
2014-03-31 8924
2014-06-30 9139
2014-09-30 10224
2014-12-31 11059
2015-03-31 11678
2015-06-30 9302
2015-09-30 10846
2015-12-31 10065
2016-03-31 10585
2016-06-30 11736
2016-09-30 11150
2016-12-31 9000
2017-03-31 9373
2017-06-30 9260
2017-09-30 9177
2017-12-31 9077
2018-03-31 9169
2018-06-30 8682
2018-09-30 8583
2018-12-31 9992
2019-03-31 10418
2019-06-30 10507
2019-09-30 11290
2019-12-31 11639
2020-03-31 10838
2020-06-30 10706
2020-09-30 10889
2020-12-31 9593
2021-03-31 8991
2021-06-30 8805
2021-09-30 8182
2021-12-31 6915
2022-03-31 6947
2022-06-30 6459
2022-09-30 7588
2022-12-31 6388
2023-03-31 6220
2023-06-30 6050
2023-09-30 6054