Quarter	US dollars
2004-12-31	-4
2005-03-31	-21
2005-06-30	2
2005-09-30	2
2005-12-31	2
2006-03-31	5
2006-06-30	0
2006-09-30	-2
2006-12-31	-57
2007-03-31	-57
2007-06-30	-34
2007-09-30	-43
2007-12-31	56
2008-03-31	-24
2008-06-30	2
2008-09-30	-64
2008-12-31	-55
2009-03-31	-40
2009-06-30	-38
2009-09-30	-13
2009-12-31	3
2010-03-31	11
2010-06-30	-1
2010-09-30	9
2010-12-31	6
2011-03-31	11
2011-06-30	6
2011-09-30	-2
2011-12-31	2
2012-03-31	0
2012-06-30	0
2012-09-30	-58
2012-12-31	-89
2013-03-31	-126
2013-06-30	-170
2013-09-30	2
2013-12-31	0
2014-03-31	-280
2014-06-30	-14
2014-09-30	-15
2014-12-31	-14
2015-03-31	-3
2015-06-30	-44
2015-09-30	-35
2015-12-31	-21
2016-03-31	-27
2016-06-30	-99
2016-09-30	-32
2016-12-31	-36
2017-03-31	-36
2017-06-30	-34
2017-09-30	-21
2017-12-31	-8
2018-03-31	-51
2018-06-30	-26
2018-09-30	-22
2018-12-31	-17
2019-03-31	-21
2019-06-30	-22
2019-09-30	-161
2019-12-31	-96
2020-03-31	-20
2020-06-30	-23
2020-09-30	-39
2020-12-31	1
2021-03-31	3
2021-06-30	19
2021-09-30	-11
2021-12-31	7
2022-03-31	-28
2022-06-30	-24
2022-09-30	-25
2022-12-31	-49
2023-03-31	-54
2023-06-30	-41
2023-09-30	-47