Quarter	US dollars
2004-12-31	8
2005-03-31	8
2005-06-30	29
2005-09-30	7
2005-12-31	7
2006-03-31	3
2006-06-30	15
2006-09-30	13
2006-12-31	27
2007-03-31	18
2007-06-30	18
2007-09-30	10
2007-12-31	6
2008-03-31	18
2008-06-30	16
2008-09-30	16
2008-12-31	7
2009-03-31	1
2009-06-30	3
2009-09-30	0
2009-12-31	0
2010-03-31	0
2010-06-30	1
2010-09-30	0
2010-12-31	25
2011-03-31	2
2011-06-30	27
2011-09-30	3
2011-12-31	0
2012-03-31	0
2012-06-30	2
2012-09-30	0
2012-12-31	40
2013-03-31	47
2013-06-30	53
2013-09-30	0
2013-12-31	0
2014-03-31	3
2014-06-30	3
2014-09-30	2
2014-12-31	0
2015-03-31	0
2015-06-30	0
2015-09-30	0
2015-12-31	13
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	6
2017-09-30	0
2017-12-31	66
2018-03-31	45
2018-06-30	49
2018-09-30	81
2018-12-31	54
2019-03-31	56
2019-06-30	56
2019-09-30	52
2019-12-31	38
2020-03-31	43
2020-06-30	44
2020-09-30	39
2020-12-31	127
2021-03-31	106
2021-06-30	131
2021-09-30	127
2021-12-31	43
2022-03-31	34
2022-06-30	24
2022-09-30	24
2022-12-31	34
2023-03-31	26
2023-06-30	27
2023-09-30	26