Quarter	US dollars
2004-12-31	-6
2005-03-31	6
2005-06-30	0
2005-09-30	-2
2005-12-31	17
2006-03-31	42
2006-06-30	65
2006-09-30	75
2006-12-31	131
2007-03-31	141
2007-06-30	203
2007-09-30	357
2007-12-31	336
2008-03-31	517
2008-06-30	482
2008-09-30	387
2008-12-31	309
2009-03-31	284
2009-06-30	260
2009-09-30	235
2009-12-31	226
2010-03-31	220
2010-06-30	49
2010-09-30	71
2010-12-31	139
2011-03-31	184
2011-06-30	193
2011-09-30	111
2011-12-31	73
2012-03-31	67
2012-06-30	67
2012-09-30	68
2012-12-31	71
2013-03-31	74
2013-06-30	70
2013-09-30	49
2013-12-31	152
2014-03-31	97
2014-06-30	70
2014-09-30	94
2014-12-31	89
2015-03-31	74
2015-06-30	20
2015-09-30	27
2015-12-31	90
2016-03-31	88
2016-06-30	91
2016-09-30	91
2016-12-31	90
2017-03-31	91
2017-06-30	90
2017-09-30	89
2017-12-31	0
2018-03-31	3
2018-06-30	-1
2018-09-30	-1
2018-12-31	-1
2019-03-31	0
2019-06-30	123
2019-09-30	132
2019-12-31	13
2020-03-31	20
2020-06-30	122
2020-09-30	18
2020-12-31	0
2021-03-31	0
2021-06-30	0
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	1
2022-09-30	0
2022-12-31	1
2023-03-31	0
2023-06-30	0
2023-09-30	0