Quarter	US dollars
2004-12-31	-36
2005-03-31	-36
2005-06-30	-41
2005-09-30	-37
2005-12-31	-34
2006-03-31	-35
2006-06-30	-50
2006-09-30	-52
2006-12-31	-39
2007-03-31	-18
2007-06-30	-18
2007-09-30	-102
2007-12-31	-100
2008-03-31	-95
2008-06-30	-131
2008-09-30	-112
2008-12-31	-112
2009-03-31	-96
2009-06-30	-68
2009-09-30	-64
2009-12-31	-48
2010-03-31	-52
2010-06-30	-42
2010-09-30	-49
2010-12-31	-70
2011-03-31	-117
2011-06-30	71
2011-09-30	-36
2011-12-31	68
2012-03-31	2
2012-06-30	-3
2012-09-30	-44
2012-12-31	-40
2013-03-31	-17
2013-06-30	-14
2013-09-30	29
2013-12-31	21
2014-03-31	0
2014-06-30	-29
2014-09-30	-2
2014-12-31	2
2015-03-31	-1
2015-06-30	-6
2015-09-30	11
2015-12-31	6
2016-03-31	6
2016-06-30	5
2016-09-30	0
2016-12-31	5
2017-03-31	-10
2017-06-30	-5
2017-09-30	0
2017-12-31	-1
2018-03-31	6
2018-06-30	3
2018-09-30	3
2018-12-31	4
2019-03-31	7
2019-06-30	11
2019-09-30	1
2019-12-31	3
2020-03-31	4
2020-06-30	4
2020-09-30	0
2020-12-31	-20
2021-03-31	-40
2021-06-30	-4
2021-09-30	86
2021-12-31	47
2022-03-31	47
2022-06-30	11
2022-09-30	9
2022-12-31	-3
2023-03-31	-3
2023-06-30	-2
2023-09-30	-3