Quarter	US dollars
2004-12-31	23
2005-03-31	25
2005-06-30	16
2005-09-30	11
2005-12-31	17
2006-03-31	17
2006-06-30	9
2006-09-30	9
2006-12-31	25
2007-03-31	14
2007-06-30	12
2007-09-30	22
2007-12-31	24
2008-03-31	32
2008-06-30	50
2008-09-30	25
2008-12-31	35
2009-03-31	29
2009-06-30	26
2009-09-30	24
2009-12-31	13
2010-03-31	11
2010-06-30	16
2010-09-30	22
2010-12-31	19
2011-03-31	27
2011-06-30	48
2011-09-30	45
2011-12-31	19
2012-03-31	29
2012-06-30	35
2012-09-30	32
2012-12-31	74
2013-03-31	62
2013-06-30	74
2013-09-30	97
2013-12-31	79
2014-03-31	77
2014-06-30	48
2014-09-30	62
2014-12-31	42
2015-03-31	67
2015-06-30	55
2015-09-30	56
2015-12-31	34
2016-03-31	53
2016-06-30	81
2016-09-30	53
2016-12-31	39
2017-03-31	43
2017-06-30	39
2017-09-30	44
2017-12-31	49
2018-03-31	35
2018-06-30	12
2018-09-30	8
2018-12-31	24
2019-03-31	22
2019-06-30	10
2019-09-30	1
2019-12-31	1
2020-03-31	0
2020-06-30	64
2020-09-30	72
2020-12-31	72
2021-03-31	48
2021-06-30	0
2021-09-30	0
2021-12-31	8
2022-03-31	7
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	2
2023-06-30	4
2023-09-30	6