Quarter	US dollars
2004-12-31	-42
2005-03-31	-40
2005-06-30	-57
2005-09-30	-32
2005-12-31	-58
2006-03-31	-68
2006-06-30	-48
2006-09-30	-21
2006-12-31	-102
2007-03-31	-100
2007-06-30	-98
2007-09-30	-98
2007-12-31	-58
2008-03-31	-64
2008-06-30	-111
2008-09-30	-98
2008-12-31	-102
2009-03-31	-83
2009-06-30	-87
2009-09-30	-80
2009-12-31	-79
2010-03-31	-80
2010-06-30	-9
2010-09-30	-13
2010-12-31	-2
2011-03-31	-224
2011-06-30	14
2011-09-30	-6
2011-12-31	2
2012-03-31	3
2012-06-30	20
2012-09-30	-5
2012-12-31	0
2013-03-31	20
2013-06-30	8
2013-09-30	8
2013-12-31	-21
2014-03-31	-78
2014-06-30	-70
2014-09-30	0
2014-12-31	2
2015-03-31	-1
2015-06-30	19
2015-09-30	24
2015-12-31	30
2016-03-31	32
2016-06-30	27
2016-09-30	25
2016-12-31	-12
2017-03-31	19
2017-06-30	-116
2017-09-30	-152
2017-12-31	0
2018-03-31	-171
2018-06-30	-96
2018-09-30	-90
2018-12-31	-114
2019-03-31	-155
2019-06-30	-99
2019-09-30	-179
2019-12-31	-182
2020-03-31	1327
2020-06-30	-67
2020-09-30	-66
2020-12-31	-98
2021-03-31	-161
2021-06-30	-135
2021-09-30	-23
2021-12-31	-7
2022-03-31	-41
2022-06-30	-32
2022-09-30	-71
2022-12-31	-88
2023-03-31	-93
2023-06-30	-100
2023-09-30	-88