Quarter	US dollars
2004-12-31	35
2005-03-31	26
2005-06-30	30
2005-09-30	21
2005-12-31	-10
2006-03-31	-12
2006-06-30	9
2006-09-30	-15
2006-12-31	-33
2007-03-31	-65
2007-06-30	-488
2007-09-30	-556
2007-12-31	100
2008-03-31	129
2008-06-30	74
2008-09-30	123
2008-12-31	152
2009-03-31	-85
2009-06-30	110
2009-09-30	-61
2009-12-31	-137
2010-03-31	-127
2010-06-30	-435
2010-09-30	-367
2010-12-31	-438
2011-03-31	-266
2011-06-30	-255
2011-09-30	-143
2011-12-31	-79
2012-03-31	-516
2012-06-30	-685
2012-09-30	-339
2012-12-31	-285
2013-03-31	-15
2013-06-30	47
2013-09-30	16
2013-12-31	55
2014-03-31	58
2014-06-30	-63
2014-09-30	52
2014-12-31	-67
2015-03-31	-77
2015-06-30	-145
2015-09-30	-141
2015-12-31	-119
2016-03-31	22
2016-06-30	-130
2016-09-30	-134
2016-12-31	-5
2017-03-31	49
2017-06-30	-84
2017-09-30	-72
2017-12-31	-3
2018-03-31	7
2018-06-30	-53
2018-09-30	-16
2018-12-31	15
2019-03-31	14
2019-06-30	61
2019-09-30	64
2019-12-31	70
2020-03-31	87
2020-06-30	48
2020-09-30	-159
2020-12-31	-173
2021-03-31	-76
2021-06-30	-73
2021-09-30	-47
2021-12-31	11
2022-03-31	-4
2022-06-30	-2
2022-09-30	-8
2022-12-31	13
2023-03-31	-182
2023-06-30	-199
2023-09-30	-280