Quarterly US dollars
1999-03-31 -10241
1999-06-30 2125
1999-09-30 27963
1999-12-31 14564
2000-03-31 27064
2000-06-30 -1780
2000-09-30 16094
2000-12-31 54641
2001-03-31 -14710
2001-06-30 -29324
2001-09-30 2192
2001-12-31 24101
2002-03-31 -13577
2002-06-30 17020
2002-09-30 14052
2002-12-31 26111
2003-03-31 28531
2003-06-30 28080
2003-09-30 -29610
2003-12-31 57745
2004-03-31 46646
2004-06-30 27579
2004-09-30 14425
2004-12-31 -24079
2005-03-31 37789
2005-06-30 71534
2005-09-30 -40069
2005-12-31 13266
2006-03-31 92492
2006-06-30 69843
2006-09-30 -40442
2006-12-31 4056
2007-03-31 218928
2007-06-30 -37090
2007-09-30 -22001
2007-12-31 -14804
2008-03-31 -39480
2008-06-30 -190005
2008-09-30 -32449
2008-12-31 -103773
2009-03-31 -10533
2009-06-30 -45526
2009-09-30 13174
2009-12-31 -51222
2010-03-31 9978
2010-06-30 25543
2010-09-30 31033
2010-12-31 -33753
2011-03-31 -76433
2011-06-30 54693
2011-09-30 -3289
2011-12-31 36860
2012-03-31 15619
2012-06-30 8
2012-09-30 6222
2012-12-31 -35241
2013-03-31 -3282
2013-06-30 -30818
2013-09-30 -6508
2013-12-31 -19992
2014-03-31 -19562
2014-06-30 35335
2014-09-30 12094
2014-12-31 -3973
2015-03-31 -17063
2015-06-30 -76981
2015-09-30 -4693
2015-12-31 -2622
2016-03-31 -30503
2016-06-30 2334
2016-09-30 28048
2016-12-31 -20222
2017-03-31 -6959
2017-06-30 5089
2017-09-30 4757
2017-12-31 -15801
2018-03-31 -8320
2018-06-30 10474
2018-09-30 -26380
2018-12-31 26554
2019-03-31 15630
2019-06-30 -5941
2019-09-30 17473
2019-12-31 -3973
2020-03-31 9120
2020-06-30 -17394
2020-09-30 14328
2020-12-31 -18466
2021-03-31 23968
2021-06-30 -15056
2021-09-30 22660
2021-12-31 17670
2022-03-31 16525
2022-06-30 2005
2022-09-30 -5705
2022-12-31 -21918
2023-03-31 12335
2023-06-30 -20930
2023-09-30 6196