Quarter	US dollars
2004-12-31	-12
2005-03-31	-8
2005-06-30	-2
2005-09-30	-2
2005-12-31	0
2006-03-31	0
2006-06-30	0
2006-09-30	0
2006-12-31	2
2007-03-31	2
2007-06-30	0
2007-09-30	0
2007-12-31	2
2008-03-31	0
2008-06-30	0
2008-09-30	0
2008-12-31	0
2009-03-31	1
2009-06-30	186
2009-09-30	125
2009-12-31	105
2010-03-31	150
2010-06-30	148
2010-09-30	109
2010-12-31	188
2011-03-31	112
2011-06-30	-85
2011-09-30	59
2011-12-31	63
2012-03-31	393
2012-06-30	130
2012-09-30	68
2012-12-31	338
2013-03-31	323
2013-06-30	126
2013-09-30	235
2013-12-31	114
2014-03-31	47
2014-06-30	144
2014-09-30	128
2014-12-31	70
2015-03-31	45
2015-06-30	42
2015-09-30	-20
2015-12-31	16
2016-03-31	1
2016-06-30	263
2016-09-30	194
2016-12-31	137
2017-03-31	146
2017-06-30	-55
2017-09-30	140
2017-12-31	-58
2018-03-31	-232
2018-06-30	-226
2018-09-30	-69
2018-12-31	-40
2019-03-31	-68
2019-06-30	-99
2019-09-30	-108
2019-12-31	-170
2020-03-31	-213
2020-06-30	-129
2020-09-30	-44
2020-12-31	-153
2021-03-31	-254
2021-06-30	-269
2021-09-30	-173
2021-12-31	-155
2022-03-31	-136
2022-06-30	-115
2022-09-30	-96
2022-12-31	-101
2023-03-31	-74
2023-06-30	-76
2023-09-30	-62