Quarter	US dollars
2004-12-31	-23
2005-03-31	-64
2005-06-30	-34
2005-09-30	19
2005-12-31	93
2006-03-31	66
2006-06-30	61
2006-09-30	58
2006-12-31	51
2007-03-31	57
2007-06-30	616
2007-09-30	47
2007-12-31	4
2008-03-31	50
2008-06-30	54
2008-09-30	-43
2008-12-31	-9
2009-03-31	-11
2009-06-30	-2
2009-09-30	-3
2009-12-31	-5
2010-03-31	-8
2010-06-30	-947
2010-09-30	-934
2010-12-31	-1055
2011-03-31	22
2011-06-30	14
2011-09-30	-17
2011-12-31	94
2012-03-31	0
2012-06-30	3
2012-09-30	5
2012-12-31	-2
2013-03-31	0
2013-06-30	-2
2013-09-30	-3
2013-12-31	-3
2014-03-31	-3
2014-06-30	-10
2014-09-30	-16
2014-12-31	-17
2015-03-31	-15
2015-06-30	-14
2015-09-30	-21
2015-12-31	-16
2016-03-31	0
2016-06-30	-4
2016-09-30	0
2016-12-31	-81
2017-03-31	-224
2017-06-30	-290
2017-09-30	-236
2017-12-31	-177
2018-03-31	-145
2018-06-30	-197
2018-09-30	-158
2018-12-31	-146
2019-03-31	-89
2019-06-30	-165
2019-09-30	-185
2019-12-31	-211
2020-03-31	-124
2020-06-30	-127
2020-09-30	-140
2020-12-31	-123
2021-03-31	-58
2021-06-30	-43
2021-09-30	-32
2021-12-31	-20
2022-03-31	-14
2022-06-30	-16
2022-09-30	-14
2022-12-31	-13
2023-03-31	-11
2023-06-30	0
2023-09-30	26