Quarterly US dollars
1999-03-31 263
1999-06-30 282
1999-09-30 339
1999-12-31 369
2000-03-31 351
2000-06-30 371
2000-09-30 527
2000-12-31 434
2001-03-31 406
2001-06-30 449
2001-09-30 531
2001-12-31 768
2002-03-31 910
2002-06-30 2009
2002-09-30 1179
2002-12-31 1108
2003-03-31 3588
2003-06-30 1310
2003-09-30 1999
2003-12-31 1328
2004-03-31 3533
2004-06-30 1640
2004-09-30 3093
2004-12-31 2467
2005-03-31 3249
2005-06-30 3075
2005-09-30 1976
2005-12-31 2192
2006-03-31 1152
2006-06-30 1597
2006-09-30 3696
2006-12-31 3876
2007-03-31 3858
2007-06-30 5286
2007-09-30 6458
2007-12-31 8109
2008-03-31 6159
2008-06-30 4745
2008-09-30 11660
2008-12-31 5352
2009-03-31 1821
2009-06-30 6766
2009-09-30 3516
2009-12-31 2222
2010-03-31 3887
2010-06-30 7269
2010-09-30 7707
2010-12-31 3548
2011-03-31 7713
2011-06-30 4655
2011-09-30 5905
2011-12-31 17133
2012-03-31 5470
2012-06-30 7967
2012-09-30 5814
2012-12-31 5393
2013-03-31 4539
2013-06-30 4102
2013-09-30 4893
2013-12-31 4667
2014-03-31 4254
2014-06-30 4122
2014-09-30 4626
2014-12-31 5946
2015-03-31 5896
2015-06-30 4760
2015-09-30 8091
2015-12-31 7361
2016-03-31 5426
2016-06-30 5727
2016-09-30 6672
2016-12-31 6696
2017-03-31 6497
2017-06-30 5827
2017-09-30 6999
2017-12-31 5280
2018-03-31 5372
2018-06-30 4226
2018-09-30 4392
2018-12-31 5245
2019-03-31 6107
2019-06-30 6310
2019-09-30 6464
2019-12-31 5796
2020-03-31 7519
2020-06-30 7253
2020-09-30 6501
2020-12-31 7207
2021-03-31 7803
2021-06-30 6529
2021-09-30 6573
2021-12-31 6681
2022-03-31 7343
2022-06-30 6983
2022-09-30 7263
2022-12-31 5974
2023-03-31 6828
2023-06-30 8071
2023-09-30 5756