Quarter	US dollars
2004-12-31	-146
2005-03-31	-144
2005-06-30	-127
2005-09-30	-122
2005-12-31	-91
2006-03-31	-87
2006-06-30	-94
2006-09-30	-92
2006-12-31	-96
2007-03-31	-110
2007-06-30	-104
2007-09-30	-104
2007-12-31	-263
2008-03-31	-139
2008-06-30	-137
2008-09-30	-34
2008-12-31	-86
2009-03-31	-86
2009-06-30	-105
2009-09-30	-109
2009-12-31	-40
2010-03-31	-49
2010-06-30	1
2010-09-30	2
2010-12-31	3
2011-03-31	-22
2011-06-30	-16
2011-09-30	-16
2011-12-31	-3
2012-03-31	-66
2012-06-30	-58
2012-09-30	-45
2012-12-31	-47
2013-03-31	15
2013-06-30	-46
2013-09-30	10
2013-12-31	-30
2014-03-31	-3
2014-06-30	-2
2014-09-30	-3
2014-12-31	-3
2015-03-31	-3
2015-06-30	-2
2015-09-30	-2
2015-12-31	1
2016-03-31	-1
2016-06-30	3
2016-09-30	0
2016-12-31	1
2017-03-31	-1
2017-06-30	-1
2017-09-30	-1
2017-12-31	4
2018-03-31	-1
2018-06-30	-9
2018-09-30	-12
2018-12-31	-6
2019-03-31	-12
2019-06-30	-11
2019-09-30	-11
2019-12-31	-13
2020-03-31	-10
2020-06-30	-10
2020-09-30	-12
2020-12-31	-10
2021-03-31	-7
2021-06-30	-7
2021-09-30	-5
2021-12-31	-4
2022-03-31	-8
2022-06-30	-11
2022-09-30	-9
2022-12-31	-16
2023-03-31	-16
2023-06-30	-15
2023-09-30	-15