Quarter	US dollars
2004-12-31	6
2005-03-31	157
2005-06-30	16
2005-09-30	14
2005-12-31	14
2006-03-31	3
2006-06-30	4
2006-09-30	4
2006-12-31	55
2007-03-31	27
2007-06-30	26
2007-09-30	22
2007-12-31	22
2008-03-31	18
2008-06-30	92
2008-09-30	98
2008-12-31	96
2009-03-31	90
2009-06-30	86
2009-09-30	118
2009-12-31	113
2010-03-31	111
2010-06-30	96
2010-09-30	95
2010-12-31	92
2011-03-31	99
2011-06-30	31
2011-09-30	30
2011-12-31	36
2012-03-31	38
2012-06-30	38
2012-09-30	36
2012-12-31	36
2013-03-31	59
2013-06-30	42
2013-09-30	42
2013-12-31	2
2014-03-31	25
2014-06-30	26
2014-09-30	0
2014-12-31	0
2015-03-31	0
2015-06-30	2
2015-09-30	17
2015-12-31	16
2016-03-31	17
2016-06-30	16
2016-09-30	1
2016-12-31	1
2017-03-31	1
2017-06-30	1
2017-09-30	1
2017-12-31	1
2018-03-31	1
2018-06-30	1
2018-09-30	1
2018-12-31	1
2019-03-31	1
2019-06-30	1
2019-09-30	1
2019-12-31	1
2020-03-31	1
2020-06-30	1
2020-09-30	1
2020-12-31	1
2021-03-31	0
2021-06-30	0
2021-09-30	1
2021-12-31	1
2022-03-31	1
2022-06-30	1
2022-09-30	1
2022-12-31	1
2023-03-31	0
2023-06-30	1
2023-09-30	1