Quarterly US dollars
1999-03-31 5745
1999-06-30 5344
1999-09-30 5654
1999-12-31 5641
2000-03-31 5461
2000-06-30 5814
2000-09-30 3121
2000-12-31 2456
2001-03-31 2339
2001-06-30 3830
2001-09-30 4987
2001-12-31 5249
2002-03-31 5357
2002-06-30 5040
2002-09-30 5434
2002-12-31 4947
2003-03-31 6336
2003-06-30 4854
2003-09-30 6773
2003-12-31 6458
2004-03-31 5969
2004-06-30 6680
2004-09-30 5081
2004-12-31 5573
2005-03-31 7722
2005-06-30 6738
2005-09-30 6244
2005-12-31 6615
2006-03-31 10428
2006-06-30 11394
2006-09-30 11959
2006-12-31 9930
2007-03-31 12724
2007-06-30 13663
2007-09-30 13314
2007-12-31 15406
2008-03-31 13773
2008-06-30 18034
2008-09-30 16461
2008-12-31 14149
2009-03-31 11979
2009-06-30 13627
2009-09-30 13448
2009-12-31 16736
2010-03-31 15908
2010-06-30 16814
2010-09-30 13848
2010-12-31 18056
2011-03-31 16757
2011-06-30 18422
2011-09-30 19437
2011-12-31 14938
2012-03-31 18551
2012-06-30 17604
2012-09-30 19901
2012-12-31 16709
2013-03-31 20250
2013-06-30 20117
2013-09-30 21811
2013-12-31 19366
2014-03-31 19408
2014-06-30 18809
2014-09-30 12513
2014-12-31 13965
2015-03-31 13240
2015-06-30 12785
2015-09-30 10829
2015-12-31 12964
2016-03-31 11188
2016-06-30 19838
2016-09-30 22970
2016-12-31 23143
2017-03-31 24018
2017-06-30 25830
2017-09-30 27993
2017-12-31 34505
2018-03-31 38982
2018-06-30 36846
2018-09-30 39680
2018-12-31 34973
2019-03-31 32332
2019-06-30 29052
2019-09-30 30319
2019-12-31 30037
2020-03-31 35169
2020-06-30 35466
2020-09-30 33703
2020-12-31 43176
2021-03-31 41844
2021-06-30 47091
2021-09-30 43494
2021-12-31 49298
2022-03-31 39377
2022-06-30 36599
2022-09-30 31982
2022-12-31 28537
2023-03-31 30586
2023-06-30 29016
2023-09-30 26352