Quarter	US dollars
2004-12-31	21
2005-03-31	4
2005-06-30	9
2005-09-30	18
2005-12-31	5
2006-03-31	5
2006-06-30	11
2006-09-30	13
2006-12-31	2
2007-03-31	12
2007-06-30	26
2007-09-30	102
2007-12-31	108
2008-03-31	127
2008-06-30	249
2008-09-30	419
2008-12-31	771
2009-03-31	754
2009-06-30	86
2009-09-30	13
2009-12-31	-11
2010-03-31	42
2010-06-30	36
2010-09-30	131
2010-12-31	132
2011-03-31	51
2011-06-30	45
2011-09-30	87
2011-12-31	83
2012-03-31	40
2012-06-30	-50
2012-09-30	-45
2012-12-31	5
2013-03-31	70
2013-06-30	27
2013-09-30	620
2013-12-31	99
2014-03-31	73
2014-06-30	-38
2014-09-30	-19
2014-12-31	5
2015-03-31	-12
2015-06-30	-8
2015-09-30	-26
2015-12-31	95
2016-03-31	-83
2016-06-30	4
2016-09-30	69
2016-12-31	132
2017-03-31	-45
2017-06-30	44
2017-09-30	30
2017-12-31	-139
2018-03-31	-102
2018-06-30	-34
2018-09-30	16
2018-12-31	-4
2019-03-31	1
2019-06-30	-83
2019-09-30	-126
2019-12-31	-53
2020-03-31	77
2020-06-30	-17
2020-09-30	-59
2020-12-31	-16
2021-03-31	-97
2021-06-30	-173
2021-09-30	18
2021-12-31	19
2022-03-31	63
2022-06-30	85
2022-09-30	130
2022-12-31	90
2023-03-31	89
2023-06-30	24
2023-09-30	61