Quarter	US dollars
2004-12-31	0
2005-03-31	11
2005-06-30	4
2005-09-30	2
2005-12-31	2
2006-03-31	2
2006-06-30	0
2006-09-30	0
2006-12-31	2
2007-03-31	0
2007-06-30	2
2007-09-30	2
2007-12-31	4
2008-03-31	4
2008-06-30	2
2008-09-30	4
2008-12-31	4
2009-03-31	3
2009-06-30	2
2009-09-30	6
2009-12-31	10
2010-03-31	32
2010-06-30	28
2010-09-30	32
2010-12-31	28
2011-03-31	59
2011-06-30	50
2011-09-30	34
2011-12-31	39
2012-03-31	45
2012-06-30	60
2012-09-30	90
2012-12-31	105
2013-03-31	115
2013-06-30	132
2013-09-30	58
2013-12-31	74
2014-03-31	123
2014-06-30	125
2014-09-30	75
2014-12-31	64
2015-03-31	9
2015-06-30	8
2015-09-30	8
2015-12-31	6
2016-03-31	6
2016-06-30	5
2016-09-30	6
2016-12-31	6
2017-03-31	19
2017-06-30	3
2017-09-30	1
2017-12-31	80
2018-03-31	65
2018-06-30	65
2018-09-30	40
2018-12-31	41
2019-03-31	44
2019-06-30	51
2019-09-30	55
2019-12-31	57
2020-03-31	24
2020-06-30	32
2020-09-30	18
2020-12-31	30
2021-03-31	23
2021-06-30	26
2021-09-30	22
2021-12-31	20
2022-03-31	21
2022-06-30	90
2022-09-30	86
2022-12-31	65
2023-03-31	111
2023-06-30	79
2023-09-30	99