Quarter	US dollars
2004-12-31	-31
2005-03-31	2
2005-06-30	7
2005-09-30	4
2005-12-31	-38
2006-03-31	-139
2006-06-30	-318
2006-09-30	-299
2006-12-31	-350
2007-03-31	-451
2007-06-30	-660
2007-09-30	-780
2007-12-31	-866
2008-03-31	-910
2008-06-30	-955
2008-09-30	-665
2008-12-31	-740
2009-03-31	-916
2009-06-30	-922
2009-09-30	42
2009-12-31	-179
2010-03-31	-26
2010-06-30	-299
2010-09-30	-35
2010-12-31	-67
2011-03-31	-40
2011-06-30	-24
2011-09-30	-93
2011-12-31	-130
2012-03-31	-139
2012-06-30	-149
2012-09-30	-92
2012-12-31	-92
2013-03-31	-64
2013-06-30	-38
2013-09-30	-28
2013-12-31	10
2014-03-31	10
2014-06-30	10
2014-09-30	0
2014-12-31	-151
2015-03-31	-1
2015-06-30	-2
2015-09-30	0
2015-12-31	0
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	0
2018-06-30	0
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0
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