Quarter	US dollars
2004-12-31	-21
2005-03-31	4
2005-06-30	-86
2005-09-30	0
2005-12-31	-12
2006-03-31	-19
2006-06-30	-15
2006-09-30	-9
2006-12-31	-14
2007-03-31	-18
2007-06-30	-14
2007-09-30	-16
2007-12-31	-18
2008-03-31	-22
2008-06-30	-22
2008-09-30	-16
2008-12-31	-16
2009-03-31	-17
2009-06-30	-15
2009-09-30	-14
2009-12-31	-24
2010-03-31	-15
2010-06-30	-21
2010-09-30	-20
2010-12-31	-25
2011-03-31	-22
2011-06-30	-31
2011-09-30	-26
2011-12-31	-80
2012-03-31	54
2012-06-30	50
2012-09-30	29
2012-12-31	60
2013-03-31	70
2013-06-30	61
2013-09-30	70
2013-12-31	78
2014-03-31	83
2014-06-30	85
2014-09-30	-11
2014-12-31	-8
2015-03-31	-7
2015-06-30	-5
2015-09-30	-3
2015-12-31	-6
2016-03-31	-1
2016-06-30	3
2016-09-30	-3
2016-12-31	15
2017-03-31	-4
2017-06-30	-4
2017-09-30	-9
2017-12-31	-12
2018-03-31	-8
2018-06-30	-11
2018-09-30	-10
2018-12-31	-13
2019-03-31	-17
2019-06-30	-13
2019-09-30	-14
2019-12-31	-15
2020-03-31	-14
2020-06-30	-15
2020-09-30	-12
2020-12-31	-10
2021-03-31	-14
2021-06-30	-10
2021-09-30	-12
2021-12-31	-12
2022-03-31	-9
2022-06-30	-7
2022-09-30	-3
2022-12-31	-6
2023-03-31	-6
2023-06-30	-3
2023-09-30	0