Quarter	US dollars
2004-12-31	-27
2005-03-31	-30
2005-06-30	18
2005-09-30	-5
2005-12-31	8
2006-03-31	2
2006-06-30	70
2006-09-30	-15
2006-12-31	-25
2007-03-31	151
2007-06-30	-82
2007-09-30	-94
2007-12-31	-46
2008-03-31	-36
2008-06-30	-86
2008-09-30	34
2008-12-31	115
2009-03-31	66
2009-06-30	13
2009-09-30	-8
2009-12-31	-61
2010-03-31	-103
2010-06-30	-109
2010-09-30	-104
2010-12-31	-5
2011-03-31	-11
2011-06-30	-22
2011-09-30	-8
2011-12-31	-6
2012-03-31	24
2012-06-30	56
2012-09-30	203
2012-12-31	343
2013-03-31	363
2013-06-30	359
2013-09-30	504
2013-12-31	-79
2014-03-31	472
2014-06-30	463
2014-09-30	459
2014-12-31	273
2015-03-31	242
2015-06-30	193
2015-09-30	-32
2015-12-31	-53
2016-03-31	-22
2016-06-30	-26
2016-09-30	-23
2016-12-31	-28
2017-03-31	-30
2017-06-30	17
2017-09-30	9
2017-12-31	11
2018-03-31	1
2018-06-30	3
2018-09-30	5
2018-12-31	9
2019-03-31	8
2019-06-30	3
2019-09-30	2
2019-12-31	5
2020-03-31	12
2020-06-30	0
2020-09-30	3
2020-12-31	7
2021-03-31	44
2021-06-30	46
2021-09-30	0
2021-12-31	26
2022-03-31	22
2022-06-30	22
2022-09-30	10
2022-12-31	23
2023-03-31	22
2023-06-30	27
2023-09-30	28