Quarterly US dollars
1999-09-30 2799
1999-12-31 8949
2000-03-31 4028
2000-06-30 8358
2000-09-30 9181
2000-12-31 9553
2001-03-31 7567
2001-06-30 8287
2001-09-30 7744
2001-12-31 5813
2002-03-31 4369
2002-06-30 6564
2002-09-30 7700
2002-12-31 4906
2003-03-31 5921
2003-06-30 4333
2003-09-30 6047
2003-12-31 5834
2004-03-31 5700
2004-06-30 4753
2004-09-30 3665
2004-12-31 4051
2005-03-31 3497
2005-06-30 3683
2005-09-30 3820
2005-12-31 5139
2006-03-31 4938
2006-06-30 3953
2006-09-30 4932
2006-12-31 4417
2007-03-31 4383
2007-06-30 3036
2007-09-30 4825
2007-12-31 4483
2008-03-31 7913
2008-06-30 9040
2008-09-30 7134
2008-12-31 2742
2009-03-31 956
2009-06-30 1542
2009-09-30 1755
2009-12-31 2673
2010-03-31 6628
2010-06-30 3486
2010-09-30 5025
2010-12-31 2867
2011-03-31 4077
2011-06-30 5309
2011-09-30 7853
2011-12-31 6459
2012-03-31 6541
2012-06-30 8014
2012-09-30 5432
2012-12-31 4412
2013-03-31 5949
2013-06-30 4813
2013-09-30 4604
2013-12-31 5602
2014-03-31 10032
2014-06-30 3207
2014-09-30 6097
2014-12-31 4047
2015-03-31 8883
2015-06-30 4105
2015-09-30 7034
2015-12-31 7443
2016-03-31 4268
2016-06-30 8560
2016-09-30 10991
2016-12-31 8430
2017-03-31 10431
2017-06-30 9990
2017-09-30 11907
2017-12-31 18637
2018-03-31 21703
2018-06-30 18351
2018-09-30 17585
2018-12-31 34652
2019-03-31 25085
2019-06-30 16701
2019-09-30 12417
2019-12-31 30350
2020-03-31 12373
2020-06-30 10184
2020-09-30 11893
2020-12-31 22732
2021-03-31 17733
2021-06-30 17540
2021-09-30 17554
2021-12-31 25201
2022-03-31 18622
2022-06-30 19688
2022-09-30 15930
2022-12-31 20379
2023-03-31 17521
2023-06-30 16392
2023-09-30 17204
2023-12-31 16241