Quarter	US dollars
2004-12-31	4
2005-03-31	34
2005-06-30	41
2005-09-30	42
2005-12-31	38
2006-03-31	12
2006-06-30	46
2006-09-30	45
2006-12-31	45
2007-03-31	73
2007-06-30	60
2007-09-30	53
2007-12-31	56
2008-03-31	58
2008-06-30	68
2008-09-30	55
2008-12-31	39
2009-03-31	57
2009-06-30	66
2009-09-30	59
2009-12-31	71
2010-03-31	70
2010-06-30	70
2010-09-30	66
2010-12-31	64
2011-03-31	24
2011-06-30	51
2011-09-30	70
2011-12-31	141
2012-03-31	134
2012-06-30	105
2012-09-30	73
2012-12-31	74
2013-03-31	64
2013-06-30	67
2013-09-30	58
2013-12-31	81
2014-03-31	75
2014-06-30	80
2014-09-30	84
2014-12-31	84
2015-03-31	92
2015-06-30	115
2015-09-30	92
2015-12-31	87
2016-03-31	83
2016-06-30	86
2016-09-30	60
2016-12-31	63
2017-03-31	88
2017-06-30	8
2017-09-30	1
2017-12-31	0
2018-03-31	4
2018-06-30	1
2018-09-30	4
2018-12-31	3
2019-03-31	5
2019-06-30	3
2019-09-30	0
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	1
2021-03-31	0
2021-06-30	0
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	13
2022-09-30	1
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0