Quarter	US dollars
2004-12-31	-17
2005-03-31	-38
2005-06-30	34
2005-09-30	-51
2005-12-31	-110
2006-03-31	31
2006-06-30	78
2006-09-30	136
2006-12-31	119
2007-03-31	279
2007-06-30	8
2007-09-30	216
2007-12-31	261
2008-03-31	280
2008-06-30	464
2008-09-30	476
2008-12-31	127
2009-03-31	66
2009-06-30	20
2009-09-30	35
2009-12-31	139
2010-03-31	71
2010-06-30	87
2010-09-30	-88
2010-12-31	13
2011-03-31	130
2011-06-30	11
2011-09-30	255
2011-12-31	-26
2012-03-31	-18
2012-06-30	78
2012-09-30	23
2012-12-31	152
2013-03-31	-26
2013-06-30	-56
2013-09-30	89
2013-12-31	76
2014-03-31	88
2014-06-30	53
2014-09-30	45
2014-12-31	34
2015-03-31	131
2015-06-30	-22
2015-09-30	-41
2015-12-31	-87
2016-03-31	-96
2016-06-30	-16
2016-09-30	-13
2016-12-31	-1
2017-03-31	-14
2017-06-30	-26
2017-09-30	-95
2017-12-31	-22
2018-03-31	-135
2018-06-30	-158
2018-09-30	-381
2018-12-31	-383
2019-03-31	-328
2019-06-30	-179
2019-09-30	-43
2019-12-31	-87
2020-03-31	-42
2020-06-30	1
2020-09-30	70
2020-12-31	29
2021-03-31	1
2021-06-30	-59
2021-09-30	42
2021-12-31	-128
2022-03-31	79
2022-06-30	177
2022-09-30	82
2022-12-31	-53
2023-03-31	-24
2023-06-30	-63
2023-09-30	-104