Quarter	US dollars
2004-12-31	2
2005-03-31	6
2005-06-30	11
2005-09-30	-2
2005-12-31	12
2006-03-31	5
2006-06-30	17
2006-09-30	11
2006-12-31	10
2007-03-31	10
2007-06-30	10
2007-09-30	8
2007-12-31	12
2008-03-31	262
2008-06-30	18
2008-09-30	-45
2008-12-31	-460
2009-03-31	-428
2009-06-30	-422
2009-09-30	-21
2009-12-31	-173
2010-03-31	-179
2010-06-30	-114
2010-09-30	-159
2010-12-31	-121
2011-03-31	-67
2011-06-30	-31
2011-09-30	-42
2011-12-31	-6
2012-03-31	0
2012-06-30	-2
2012-09-30	-373
2012-12-31	-45
2013-03-31	6
2013-06-30	-26
2013-09-30	-115
2013-12-31	0
2014-03-31	170
2014-06-30	2
2014-09-30	0
2014-12-31	0
2015-03-31	0
2015-06-30	0
2015-09-30	0
2015-12-31	15
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	0
2017-09-30	0
2017-12-31	0
2018-03-31	69
2018-06-30	74
2018-09-30	85
2018-12-31	103
2019-03-31	0
2019-06-30	-56
2019-09-30	1
2019-12-31	1
2020-03-31	1
2020-06-30	1
2020-09-30	-1
2020-12-31	-7
2021-03-31	-6
2021-06-30	-3
2021-09-30	-3
2021-12-31	-5
2022-03-31	-4
2022-06-30	-2
2022-09-30	-2
2022-12-31	-1
2023-03-31	-2
2023-06-30	-3
2023-09-30	0