Quarterly US dollars
1999-03-31 206
1999-06-30 179
1999-09-30 326
1999-12-31 70
2000-03-31 68
2000-06-30 85
2000-09-30 113
2000-12-31 136
2001-03-31 167
2001-06-30 130
2001-09-30 130
2001-12-31 239
2002-03-31 216
2002-06-30 609
2002-09-30 1365
2002-12-31 1621
2003-03-31 1863
2003-06-30 2403
2003-09-30 2829
2003-12-31 2140
2004-03-31 2988
2004-06-30 4212
2004-09-30 4979
2004-12-31 4143
2005-03-31 6100
2005-06-30 7550
2005-09-30 7870
2005-12-31 9700
2006-03-31 7680
2006-06-30 8829
2006-09-30 10965
2006-12-31 11803
2007-03-31 11694
2007-06-30 13498
2007-09-30 15239
2007-12-31 15155
2008-03-31 14646
2008-06-30 15038
2008-09-30 13860
2008-12-31 10033
2009-03-31 6753
2009-06-30 8085
2009-09-30 7023
2009-12-31 7706
2010-03-31 7563
2010-06-30 9945
2010-09-30 11471
2010-12-31 11893
2011-03-31 14025
2011-06-30 12452
2011-09-30 9766
2011-12-31 7902
2012-03-31 8266
2012-06-30 7526
2012-09-30 5246
2012-12-31 3028
2013-03-31 3412
2013-06-30 2387
2013-09-30 1951
2013-12-31 2764
2014-03-31 963
2014-06-30 1712
2014-09-30 2349
2014-12-31 336
2015-03-31 1678
2015-06-30 1283
2015-09-30 3415
2015-12-31 3378
2016-03-31 1333
2016-06-30 426
2016-09-30 373
2016-12-31 788
2017-03-31 607
2017-06-30 501
2017-09-30 388
2017-12-31 488
2018-03-31 624
2018-06-30 1041
2018-09-30 1311
2018-12-31 2010
2019-03-31 2175
2019-06-30 1135
2019-09-30 1681
2019-12-31 1604
2020-03-31 603
2020-06-30 566
2020-09-30 799
2020-12-31 662
2021-03-31 755
2021-06-30 876
2021-09-30 1002
2021-12-31 1030
2022-03-31 1743
2022-06-30 778
2022-09-30 1885
2022-12-31 449
2023-03-31 584
2023-06-30 455
2023-09-30 584