Quarter	US dollars
2004-12-31	12
2005-03-31	13
2005-06-30	14
2005-09-30	7
2005-12-31	9
2006-03-31	16
2006-06-30	15
2006-09-30	11
2006-12-31	10
2007-03-31	-143
2007-06-30	-66
2007-09-30	18
2007-12-31	2
2008-03-31	-10
2008-06-30	4
2008-09-30	-32
2008-12-31	-14
2009-03-31	1
2009-06-30	18
2009-09-30	13
2009-12-31	0
2010-03-31	-2
2010-06-30	15
2010-09-30	3
2010-12-31	17
2011-03-31	-6
2011-06-30	-16
2011-09-30	-14
2011-12-31	5
2012-03-31	8
2012-06-30	-5
2012-09-30	5
2012-12-31	0
2013-03-31	8
2013-06-30	2
2013-09-30	0
2013-12-31	2
2014-03-31	2
2014-06-30	2
2014-09-30	2
2014-12-31	0
2015-03-31	0
2015-06-30	0
2015-09-30	2
2015-12-31	3
2016-03-31	0
2016-06-30	-50
2016-09-30	-49
2016-12-31	-43
2017-03-31	-43
2017-06-30	-75
2017-09-30	-44
2017-12-31	-42
2018-03-31	-22
2018-06-30	-25
2018-09-30	-10
2018-12-31	-22
2019-03-31	-10
2019-06-30	-48
2019-09-30	-34
2019-12-31	-114
2020-03-31	-87
2020-06-30	-87
2020-09-30	-128
2020-12-31	-79
2021-03-31	-57
2021-06-30	-18
2021-09-30	-86
2021-12-31	-59
2022-03-31	-54
2022-06-30	-34
2022-09-30	-61
2022-12-31	-46
2023-03-31	-29
2023-06-30	-28
2023-09-30	-28