Quarterly US dollars
1999-03-31 2471
1999-06-30 2219
1999-09-30 2133
1999-12-31 2666
2000-03-31 2703
2000-06-30 2953
2000-09-30 3474
2000-12-31 3684
2001-03-31 4206
2001-06-30 4435
2001-09-30 5161
2001-12-31 4579
2002-03-31 4334
2002-06-30 4879
2002-09-30 4172
2002-12-31 4115
2003-03-31 3696
2003-06-30 3462
2003-09-30 3655
2003-12-31 2670
2004-03-31 2985
2004-06-30 3073
2004-09-30 4430
2004-12-31 6180
2005-03-31 5378
2005-06-30 4831
2005-09-30 5347
2005-12-31 4814
2006-03-31 5933
2006-06-30 5828
2006-09-30 6165
2006-12-31 5962
2007-03-31 12004
2007-06-30 12803
2007-09-30 11546
2007-12-31 9891
2008-03-31 12049
2008-06-30 9763
2008-09-30 9373
2008-12-31 10330
2009-03-31 8545
2009-06-30 6757
2009-09-30 6707
2009-12-31 7221
2010-03-31 8472
2010-06-30 10722
2010-09-30 10334
2010-12-31 8523
2011-03-31 14796
2011-06-30 15251
2011-09-30 11750
2011-12-31 6785
2012-03-31 7276
2012-06-30 9349
2012-09-30 7903
2012-12-31 8876
2013-03-31 10472
2013-06-30 11955
2013-09-30 10501
2013-12-31 11032
2014-03-31 8822
2014-06-30 10898
2014-09-30 9962
2014-12-31 9107
2015-03-31 10188
2015-06-30 8736
2015-09-30 8010
2015-12-31 8474
2016-03-31 9114
2016-06-30 10465
2016-09-30 9128
2016-12-31 8978
2017-03-31 7770
2017-06-30 8262
2017-09-30 9525
2017-12-31 8293
2018-03-31 9244
2018-06-30 9742
2018-09-30 8609
2018-12-31 8985
2019-03-31 8378
2019-06-30 7642
2019-09-30 8005
2019-12-31 8152
2020-03-31 10090
2020-06-30 9653
2020-09-30 8425
2020-12-31 9735
2021-03-31 9341
2021-06-30 9584
2021-09-30 8286
2021-12-31 7002
2022-03-31 6800
2022-06-30 9013
2022-09-30 8766
2022-12-31 7824
2023-03-31 10111
2023-06-30 11649
2023-09-30 12612