Quarter	US dollars
2004-12-31	2
2005-03-31	0
2005-06-30	2
2005-09-30	2
2005-12-31	2
2006-03-31	2
2006-06-30	7
2006-09-30	6
2006-12-31	8
2007-03-31	18
2007-06-30	18
2007-09-30	14
2007-12-31	14
2008-03-31	22
2008-06-30	18
2008-09-30	16
2008-12-31	17
2009-03-31	11
2009-06-30	43
2009-09-30	51
2009-12-31	58
2010-03-31	47
2010-06-30	46
2010-09-30	79
2010-12-31	86
2011-03-31	93
2011-06-30	85
2011-09-30	44
2011-12-31	83
2012-03-31	53
2012-06-30	72
2012-09-30	71
2012-12-31	63
2013-03-31	65
2013-06-30	58
2013-09-30	68
2013-12-31	83
2014-03-31	1152
2014-06-30	904
2014-09-30	53
2014-12-31	30
2015-03-31	4
2015-06-30	24
2015-09-30	5
2015-12-31	49
2016-03-31	32
2016-06-30	8
2016-09-30	9
2016-12-31	9
2017-03-31	9
2017-06-30	5
2017-09-30	0
2017-12-31	5
2018-03-31	0
2018-06-30	5
2018-09-30	9
2018-12-31	10
2019-03-31	1
2019-06-30	4
2019-09-30	12
2019-12-31	11
2020-03-31	0
2020-06-30	1
2020-09-30	0
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	0
2023-03-31	11
2023-06-30	15
2023-09-30	15