Quarter	US dollars
2004-12-31	13
2005-03-31	68
2005-06-30	147
2005-09-30	164
2005-12-31	-2171
2006-03-31	-4903
2006-06-30	-8494
2006-09-30	-9948
2006-12-31	-13834
2007-03-31	-17952
2007-06-30	-22700
2007-09-30	-31085
2007-12-31	-37984
2008-03-31	-41167
2008-06-30	-47902
2008-09-30	-24336
2008-12-31	-27122
2009-03-31	-25010
2009-06-30	-26708
2009-09-30	-10923
2009-12-31	-11522
2010-03-31	-13499
2010-06-30	-13759
2010-09-30	-202
2010-12-31	-282
2011-03-31	-16
2011-06-30	-31
2011-09-30	-291
2011-12-31	-204
2012-03-31	-214
2012-06-30	-188
2012-09-30	-249
2012-12-31	-99
2013-03-31	-93
2013-06-30	-61
2013-09-30	0
2013-12-31	202
2014-03-31	140
2014-06-30	178
2014-09-30	57
2014-12-31	-95
2015-03-31	-19
2015-06-30	-17
2015-09-30	-65
2015-12-31	-89
2016-03-31	-86
2016-06-30	-73
2016-09-30	-38
2016-12-31	-52
2017-03-31	-18
2017-06-30	-8
2017-09-30	-8
2017-12-31	-7
2018-03-31	-7
2018-06-30	-5
2018-09-30	-4
2018-12-31	-14
2019-03-31	17
2019-06-30	13
2019-09-30	21
2019-12-31	18
2020-03-31	33
2020-06-30	-7
2020-09-30	455
2020-12-31	480
2021-03-31	446
2021-06-30	482
2021-09-30	49
2021-12-31	605
2022-03-31	1050
2022-06-30	689
2022-09-30	775
2022-12-31	927
2023-03-31	960
2023-06-30	1057
2023-09-30	1095