Quarter	US dollars
2004-12-31	8
2005-03-31	9
2005-06-30	9
2005-09-30	4
2005-12-31	-10
2006-03-31	5
2006-06-30	46
2006-09-30	39
2006-12-31	-16
2007-03-31	35
2007-06-30	231
2007-09-30	255
2007-12-31	468
2008-03-31	515
2008-06-30	507
2008-09-30	501
2008-12-31	331
2009-03-31	350
2009-06-30	341
2009-09-30	289
2009-12-31	254
2010-03-31	171
2010-06-30	163
2010-09-30	88
2010-12-31	31
2011-03-31	18
2011-06-30	10
2011-09-30	-14
2011-12-31	-152
2012-03-31	-51
2012-06-30	-47
2012-09-30	-173
2012-12-31	-113
2013-03-31	-146
2013-06-30	-193
2013-09-30	-120
2013-12-31	-121
2014-03-31	-18
2014-06-30	-26
2014-09-30	-13
2014-12-31	-12
2015-03-31	-6
2015-06-30	-11
2015-09-30	17
2015-12-31	1
2016-03-31	3
2016-06-30	-13
2016-09-30	-9
2016-12-31	-4
2017-03-31	6
2017-06-30	5
2017-09-30	4
2017-12-31	4
2018-03-31	8
2018-06-30	13
2018-09-30	5
2018-12-31	-20
2019-03-31	0
2019-06-30	1
2019-09-30	2
2019-12-31	1
2020-03-31	2
2020-06-30	2
2020-09-30	3
2020-12-31	-1
2021-03-31	-37
2021-06-30	-37
2021-09-30	-36
2021-12-31	-36
2022-03-31	-50
2022-06-30	-166
2022-09-30	-121
2022-12-31	-172
2023-03-31	-183
2023-06-30	-379
2023-09-30	-374