Quarter	US dollars
2004-12-31	-36
2005-03-31	-55
2005-06-30	-56
2005-09-30	-58
2005-12-31	-46
2006-03-31	-52
2006-06-30	-63
2006-09-30	-60
2006-12-31	-55
2007-03-31	-57
2007-06-30	-195
2007-09-30	-163
2007-12-31	-195
2008-03-31	-179
2008-06-30	-237
2008-09-30	-198
2008-12-31	-150
2009-03-31	-86
2009-06-30	-109
2009-09-30	-51
2009-12-31	-68
2010-03-31	-105
2010-06-30	-150
2010-09-30	-60
2010-12-31	-55
2011-03-31	-165
2011-06-30	-183
2011-09-30	-156
2011-12-31	-83
2012-03-31	-30
2012-06-30	-42
2012-09-30	-16
2012-12-31	70
2013-03-31	67
2013-06-30	67
2013-09-30	70
2013-12-31	-8
2014-03-31	-8
2014-06-30	-39
2014-09-30	-10
2014-12-31	-11
2015-03-31	-16
2015-06-30	-24
2015-09-30	8
2015-12-31	7
2016-03-31	-6
2016-06-30	-5
2016-09-30	-3
2016-12-31	-7
2017-03-31	-1
2017-06-30	-9
2017-09-30	1
2017-12-31	11
2018-03-31	0
2018-06-30	0
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	1
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	0
2021-06-30	0
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0