Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	0
2005-12-31	0
2006-03-31	0
2006-06-30	0
2006-09-30	0
2006-12-31	0
2007-03-31	4
2007-06-30	4
2007-09-30	4
2007-12-31	2
2008-03-31	4
2008-06-30	4
2008-09-30	4
2008-12-31	1
2009-03-31	1
2009-06-30	2
2009-09-30	2
2009-12-31	6
2010-03-31	20
2010-06-30	6
2010-09-30	17
2010-12-31	27
2011-03-31	40
2011-06-30	34
2011-09-30	22
2011-12-31	8
2012-03-31	27
2012-06-30	47
2012-09-30	29
2012-12-31	21
2013-03-31	35
2013-06-30	32
2013-09-30	34
2013-12-31	83
2014-03-31	38
2014-06-30	77
2014-09-30	68
2014-12-31	8
2015-03-31	42
2015-06-30	49
2015-09-30	61
2015-12-31	76
2016-03-31	17
2016-06-30	34
2016-09-30	26
2016-12-31	22
2017-03-31	18
2017-06-30	8
2017-09-30	8
2017-12-31	7
2018-03-31	4
2018-06-30	4
2018-09-30	3
2018-12-31	4
2019-03-31	22
2019-06-30	10
2019-09-30	5
2019-12-31	11
2020-03-31	21
2020-06-30	12
2020-09-30	8
2020-12-31	18
2021-03-31	4
2021-06-30	4
2021-09-30	1
2021-12-31	1
2022-03-31	0
2022-06-30	90
2022-09-30	2
2022-12-31	1
2023-03-31	0
2023-06-30	0
2023-09-30	0