Quarterly US dollars
1999-03-31 1433
1999-06-30 1442
1999-09-30 1468
1999-12-31 1307
2000-03-31 1163
2000-06-30 2886
2000-09-30 3579
2000-12-31 4228
2001-03-31 4382
2001-06-30 4142
2001-09-30 3415
2001-12-31 3436
2002-03-31 3267
2002-06-30 2818
2002-09-30 4149
2002-12-31 3064
2003-03-31 3644
2003-06-30 4411
2003-09-30 4215
2003-12-31 5555
2004-03-31 5048
2004-06-30 4484
2004-09-30 4290
2004-12-31 4043
2005-03-31 5115
2005-06-30 5954
2005-09-30 5158
2005-12-31 6035
2006-03-31 6638
2006-06-30 5578
2006-09-30 6250
2006-12-31 5992
2007-03-31 8041
2007-06-30 8599
2007-09-30 6157
2007-12-31 6097
2008-03-31 6892
2008-06-30 4288
2008-09-30 3102
2008-12-31 2410
2009-03-31 4740
2009-06-30 6188
2009-09-30 4496
2009-12-31 5980
2010-03-31 5141
2010-06-30 3783
2010-09-30 5154
2010-12-31 4502
2011-03-31 2961
2011-06-30 3959
2011-09-30 4430
2011-12-31 4930
2012-03-31 3961
2012-06-30 2537
2012-09-30 4437
2012-12-31 3289
2013-03-31 4045
2013-06-30 3273
2013-09-30 4121
2013-12-31 4506
2014-03-31 4034
2014-06-30 3680
2014-09-30 2905
2014-12-31 3360
2015-03-31 3828
2015-06-30 3720
2015-09-30 5799
2015-12-31 4064
2016-03-31 3858
2016-06-30 3674
2016-09-30 2148
2016-12-31 1605
2017-03-31 3021
2017-06-30 1896
2017-09-30 2216
2017-12-31 2393
2018-03-31 3045
2018-06-30 2519
2018-09-30 1631
2018-12-31 1866
2019-03-31 1758
2019-06-30 2019
2019-09-30 1886
2019-12-31 2582
2020-03-31 2269
2020-06-30 1885
2020-09-30 1878
2020-12-31 1589
2021-03-31 1820
2021-06-30 1045
2021-09-30 995
2021-12-31 955
2022-03-31 882
2022-06-30 892
2022-09-30 1022
2022-12-31 746
2023-03-31 853
2023-06-30 806
2023-09-30 859