Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	2
2005-12-31	0
2006-03-31	0
2006-06-30	-126
2006-09-30	-125
2006-12-31	-125
2007-03-31	-126
2007-06-30	-124
2007-09-30	-128
2007-12-31	-100
2008-03-31	0
2008-06-30	0
2008-09-30	0
2008-12-31	0
2009-03-31	0
2009-06-30	0
2009-09-30	0
2009-12-31	0
2010-03-31	0
2010-06-30	0
2010-09-30	0
2010-12-31	0
2011-03-31	0
2011-06-30	-10
2011-09-30	-26
2011-12-31	0
2012-03-31	0
2012-06-30	0
2012-09-30	0
2012-12-31	-2
2013-03-31	-5
2013-06-30	-2
2013-09-30	3
2013-12-31	5
2014-03-31	-3
2014-06-30	-2
2014-09-30	-3
2014-12-31	0
2015-03-31	0
2015-06-30	0
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	1
2020-09-30	1
2020-12-31	1
2021-03-31	1
2021-06-30	19
2021-09-30	19
2021-12-31	22
2022-03-31	22
2022-06-30	26
2022-09-30	66
2022-12-31	69
2023-03-31	68
2023-06-30	62
2023-09-30	50