Quarter	US dollars
2004-12-31	-100
2005-03-31	17
2005-06-30	32
2005-09-30	16
2005-12-31	17
2006-03-31	156
2006-06-30	170
2006-09-30	166
2006-12-31	204
2007-03-31	100
2007-06-30	219
2007-09-30	240
2007-12-31	412
2008-03-31	409
2008-06-30	394
2008-09-30	139
2008-12-31	160
2009-03-31	56
2009-06-30	125
2009-09-30	14
2009-12-31	-58
2010-03-31	-50
2010-06-30	-43
2010-09-30	-118
2010-12-31	-97
2011-03-31	-99
2011-06-30	-130
2011-09-30	-137
2011-12-31	175
2012-03-31	-93
2012-06-30	-83
2012-09-30	-152
2012-12-31	-155
2013-03-31	-112
2013-06-30	-80
2013-09-30	5
2013-12-31	-81
2014-03-31	8
2014-06-30	-87
2014-09-30	53
2014-12-31	27
2015-03-31	27
2015-06-30	-30
2015-09-30	-15
2015-12-31	43
2016-03-31	33
2016-06-30	16
2016-09-30	5
2016-12-31	5
2017-03-31	-54
2017-06-30	21
2017-09-30	16
2017-12-31	18
2018-03-31	86
2018-06-30	81
2018-09-30	80
2018-12-31	78
2019-03-31	113
2019-06-30	123
2019-09-30	112
2019-12-31	18
2020-03-31	64
2020-06-30	68
2020-09-30	65
2020-12-31	83
2021-03-31	76
2021-06-30	80
2021-09-30	67
2021-12-31	27
2022-03-31	26
2022-06-30	24
2022-09-30	45
2022-12-31	98
2023-03-31	100
2023-06-30	72
2023-09-30	69