Quarter	US dollars
2004-12-31	-2
2005-03-31	0
2005-06-30	5
2005-09-30	4
2005-12-31	29
2006-03-31	2
2006-06-30	-13
2006-09-30	-17
2006-12-31	-6
2007-03-31	-6
2007-06-30	24
2007-09-30	-12
2007-12-31	-14
2008-03-31	-20
2008-06-30	0
2008-09-30	-2
2008-12-31	-1
2009-03-31	3
2009-06-30	-16
2009-09-30	3
2009-12-31	-24
2010-03-31	-30
2010-06-30	-28
2010-09-30	-28
2010-12-31	-25
2011-03-31	-22
2011-06-30	-42
2011-09-30	-33
2011-12-31	-8
2012-03-31	-11
2012-06-30	-16
2012-09-30	-8
2012-12-31	6
2013-03-31	6
2013-06-30	8
2013-09-30	15
2013-12-31	8
2014-03-31	13
2014-06-30	10
2014-09-30	11
2014-12-31	12
2015-03-31	12
2015-06-30	14
2015-09-30	14
2015-12-31	12
2016-03-31	4
2016-06-30	4
2016-09-30	4
2016-12-31	4
2017-03-31	4
2017-06-30	-74
2017-09-30	-51
2017-12-31	-53
2018-03-31	4
2018-06-30	4
2018-09-30	4
2018-12-31	11
2019-03-31	10
2019-06-30	11
2019-09-30	14
2019-12-31	12
2020-03-31	-16
2020-06-30	26
2020-09-30	-25
2020-12-31	-41
2021-03-31	-36
2021-06-30	-43
2021-09-30	-35
2021-12-31	-46
2022-03-31	-55
2022-06-30	-667
2022-09-30	-798
2022-12-31	-905
2023-03-31	-945
2023-06-30	-1032
2023-09-30	-997