Quarter	US dollars
2004-12-31	-61
2005-03-31	-15
2005-06-30	-16
2005-09-30	-25
2005-12-31	27
2006-03-31	-23
2006-06-30	9
2006-09-30	-43
2006-12-31	29
2007-03-31	75
2007-06-30	70
2007-09-30	39
2007-12-31	-2
2008-03-31	8
2008-06-30	-16
2008-09-30	-5
2008-12-31	-23
2009-03-31	-32
2009-06-30	-56
2009-09-30	-134
2009-12-31	-208
2010-03-31	-62
2010-06-30	-138
2010-09-30	2
2010-12-31	-208
2011-03-31	-138
2011-06-30	-295
2011-09-30	-151
2011-12-31	-272
2012-03-31	-229
2012-06-30	-182
2012-09-30	-163
2012-12-31	-120
2013-03-31	-96
2013-06-30	-481
2013-09-30	-79
2013-12-31	-91
2014-03-31	-52
2014-06-30	-39
2014-09-30	-3
2014-12-31	-8
2015-03-31	-3
2015-06-30	-3
2015-09-30	0
2015-12-31	-53
2016-03-31	-59
2016-06-30	-66
2016-09-30	-64
2016-12-31	-58
2017-03-31	-55
2017-06-30	-21
2017-09-30	-4
2017-12-31	-5
2018-03-31	-6
2018-06-30	-5
2018-09-30	-5
2018-12-31	-5
2019-03-31	-3
2019-06-30	-5
2019-09-30	-2
2019-12-31	11
2020-03-31	-61
2020-06-30	0
2020-09-30	28
2020-12-31	66
2021-03-31	1
2021-06-30	-6
2021-09-30	1
2021-12-31	0
2022-03-31	4
2022-06-30	6
2022-09-30	21
2022-12-31	-13
2023-03-31	26
2023-06-30	5
2023-09-30	41