Quarter	US dollars
2004-12-31	-27
2005-03-31	-8
2005-06-30	-7
2005-09-30	-4
2005-12-31	-9
2006-03-31	2
2006-06-30	17
2006-09-30	-2
2006-12-31	20
2007-03-31	25
2007-06-30	26
2007-09-30	-2
2007-12-31	-26
2008-03-31	-8
2008-06-30	227
2008-09-30	-14
2008-12-31	-47
2009-03-31	-39
2009-06-30	-61
2009-09-30	-6
2009-12-31	-23
2010-03-31	-15
2010-06-30	-12
2010-09-30	206
2010-12-31	-5
2011-03-31	40
2011-06-30	2
2011-09-30	-47
2011-12-31	-25
2012-03-31	-18
2012-06-30	-11
2012-09-30	-8
2012-12-31	-10
2013-03-31	6
2013-06-30	-14
2013-09-30	-28
2013-12-31	-63
2014-03-31	-62
2014-06-30	-55
2014-09-30	-62
2014-12-31	-58
2015-03-31	-55
2015-06-30	-55
2015-09-30	0
2015-12-31	-43
2016-03-31	-35
2016-06-30	-34
2016-09-30	-39
2016-12-31	-62
2017-03-31	-69
2017-06-30	-79
2017-09-30	-83
2017-12-31	-61
2018-03-31	-60
2018-06-30	-112
2018-09-30	-38
2018-12-31	-37
2019-03-31	-18
2019-06-30	0
2019-09-30	64
2019-12-31	65
2020-03-31	55
2020-06-30	37
2020-09-30	47
2020-12-31	64
2021-03-31	65
2021-06-30	65
2021-09-30	61
2021-12-31	61
2022-03-31	61
2022-06-30	58
2022-09-30	59
2022-12-31	65
2023-03-31	59
2023-06-30	47
2023-09-30	28