Quarter	US dollars
2004-12-31	12
2005-03-31	13
2005-06-30	13
2005-09-30	9
2005-12-31	12
2006-03-31	5
2006-06-30	6
2006-09-30	2
2006-12-31	10
2007-03-31	16
2007-06-30	12
2007-09-30	14
2007-12-31	16
2008-03-31	34
2008-06-30	26
2008-09-30	30
2008-12-31	33
2009-03-31	30
2009-06-30	30
2009-09-30	26
2009-12-31	24
2010-03-31	23
2010-06-30	24
2010-09-30	20
2010-12-31	22
2011-03-31	18
2011-06-30	29
2011-09-30	37
2011-12-31	34
2012-03-31	27
2012-06-30	102
2012-09-30	84
2012-12-31	107
2013-03-31	82
2013-06-30	15
2013-09-30	52
2013-12-31	78
2014-03-31	78
2014-06-30	82
2014-09-30	89
2014-12-31	73
2015-03-31	62
2015-06-30	74
2015-09-30	55
2015-12-31	53
2016-03-31	43
2016-06-30	44
2016-09-30	25
2016-12-31	33
2017-03-31	33
2017-06-30	21
2017-09-30	16
2017-12-31	15
2018-03-31	8
2018-06-30	0
2018-09-30	10
2018-12-31	5
2019-03-31	3
2019-06-30	3
2019-09-30	2
2019-12-31	1
2020-03-31	2
2020-06-30	2
2020-09-30	5
2020-12-31	8
2021-03-31	6
2021-06-30	4
2021-09-30	7
2021-12-31	7
2022-03-31	0
2022-06-30	6
2022-09-30	4
2022-12-31	10
2023-03-31	18
2023-06-30	9
2023-09-30	0