Quarterly US dollars
1999-03-31 2003
1999-06-30 2111
1999-09-30 1917
1999-12-31 2164
2000-03-31 1927
2000-06-30 2350
2000-09-30 2727
2000-12-31 2183
2001-03-31 2222
2001-06-30 2393
2001-09-30 1675
2001-12-31 1455
2002-03-31 1484
2002-06-30 1361
2002-09-30 1444
2002-12-31 2519
2003-03-31 3330
2003-06-30 3632
2003-09-30 3642
2003-12-31 3705
2004-03-31 3528
2004-06-30 3679
2004-09-30 3412
2004-12-31 4064
2005-03-31 3705
2005-06-30 3674
2005-09-30 4456
2005-12-31 4628
2006-03-31 5171
2006-06-30 6363
2006-09-30 5142
2006-12-31 4968
2007-03-31 5429
2007-06-30 5602
2007-09-30 5585
2007-12-31 5192
2008-03-31 5227
2008-06-30 4642
2008-09-30 5207
2008-12-31 5553
2009-03-31 5399
2009-06-30 5983
2009-09-30 7553
2009-12-31 9060
2010-03-31 9991
2010-06-30 10778
2010-09-30 10666
2010-12-31 11772
2011-03-31 13620
2011-06-30 12679
2011-09-30 12302
2011-12-31 12409
2012-03-31 11402
2012-06-30 10736
2012-09-30 10705
2012-12-31 10619
2013-03-31 10309
2013-06-30 10848
2013-09-30 10143
2013-12-31 11375
2014-03-31 11149
2014-06-30 11857
2014-09-30 10625
2014-12-31 10524
2015-03-31 11217
2015-06-30 9000
2015-09-30 8410
2015-12-31 8035
2016-03-31 7095
2016-06-30 8543
2016-09-30 8641
2016-12-31 8513
2017-03-31 9002
2017-06-30 8889
2017-09-30 9064
2017-12-31 10341
2018-03-31 9763
2018-06-30 10234
2018-09-30 10250
2018-12-31 8779
2019-03-31 8068
2019-06-30 7186
2019-09-30 6916
2019-12-31 5460
2020-03-31 5778
2020-06-30 6361
2020-09-30 5722
2020-12-31 5758
2021-03-31 4937
2021-06-30 4299
2021-09-30 3676
2021-12-31 2588
2022-03-31 2488
2022-06-30 1490
2022-09-30 1617
2022-12-31 2195
2023-03-31 2138
2023-06-30 940
2023-09-30 873