Quarter	US dollars
2004-12-31	-10
2005-03-31	2
2005-06-30	4
2005-09-30	-4
2005-12-31	-7
2006-03-31	-7
2006-06-30	0
2006-09-30	-24
2006-12-31	-25
2007-03-31	-10
2007-06-30	-8
2007-09-30	43
2007-12-31	-30
2008-03-31	-205
2008-06-30	-147
2008-09-30	-157
2008-12-31	-139
2009-03-31	-168
2009-06-30	-38
2009-09-30	-37
2009-12-31	-13
2010-03-31	-5
2010-06-30	3
2010-09-30	-3
2010-12-31	9
2011-03-31	0
2011-06-30	5
2011-09-30	6
2011-12-31	6
2012-03-31	11
2012-06-30	3
2012-09-30	10
2012-12-31	8
2013-03-31	6
2013-06-30	-5
2013-09-30	-89
2013-12-31	-15
2014-03-31	15
2014-06-30	12
2014-09-30	-6
2014-12-31	-6
2015-03-31	-4
2015-06-30	-5
2015-09-30	6
2015-12-31	16
2016-03-31	1
2016-06-30	4
2016-09-30	6
2016-12-31	1
2017-03-31	14
2017-06-30	25
2017-09-30	12
2017-12-31	15
2018-03-31	-147
2018-06-30	-3
2018-09-30	-4
2018-12-31	-3
2019-03-31	-1
2019-06-30	0
2019-09-30	-32
2019-12-31	-119
2020-03-31	-29
2020-06-30	-26
2020-09-30	-16
2020-12-31	-20
2021-03-31	-8
2021-06-30	-32
2021-09-30	-54
2021-12-31	-30
2022-03-31	-45
2022-06-30	-19
2022-09-30	-7
2022-12-31	-10
2023-03-31	-20
2023-06-30	-79
2023-09-30	-16