Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	0
2005-12-31	2
2006-03-31	0
2006-06-30	0
2006-09-30	0
2006-12-31	0
2007-03-31	0
2007-06-30	0
2007-09-30	0
2007-12-31	0
2008-03-31	0
2008-06-30	0
2008-09-30	0
2008-12-31	0
2009-03-31	0
2009-06-30	0
2009-09-30	0
2009-12-31	5
2010-03-31	12
2010-06-30	28
2010-09-30	16
2010-12-31	6
2011-03-31	50
2011-06-30	21
2011-09-30	8
2011-12-31	8
2012-03-31	8
2012-06-30	9
2012-09-30	394
2012-12-31	393
2013-03-31	316
2013-06-30	100
2013-09-30	249
2013-12-31	94
2014-03-31	162
2014-06-30	12
2014-09-30	10
2014-12-31	55
2015-03-31	27
2015-06-30	0
2015-09-30	0
2015-12-31	113
2016-03-31	134
2016-06-30	21
2016-09-30	66
2016-12-31	66
2017-03-31	0
2017-06-30	65
2017-09-30	86
2017-12-31	136
2018-03-31	154
2018-06-30	123
2018-09-30	68
2018-12-31	27
2019-03-31	128
2019-06-30	146
2019-09-30	70
2019-12-31	81
2020-03-31	57
2020-06-30	36
2020-09-30	50
2020-12-31	26
2021-03-31	17
2021-06-30	23
2021-09-30	27
2021-12-31	0
2022-03-31	4
2022-06-30	13
2022-09-30	1
2022-12-31	25
2023-03-31	148
2023-06-30	50
2023-09-30	16