Quarter	US dollars
2004-12-31	25
2005-03-31	15
2005-06-30	11
2005-09-30	21
2005-12-31	36
2006-03-31	35
2006-06-30	37
2006-09-30	21
2006-12-31	22
2007-03-31	16
2007-06-30	14
2007-09-30	29
2007-12-31	56
2008-03-31	40
2008-06-30	137
2008-09-30	144
2008-12-31	115
2009-03-31	321
2009-06-30	51
2009-09-30	96
2009-12-31	100
2010-03-31	67
2010-06-30	51
2010-09-30	47
2010-12-31	49
2011-03-31	50
2011-06-30	80
2011-09-30	75
2011-12-31	131
2012-03-31	78
2012-06-30	64
2012-09-30	95
2012-12-31	86
2013-03-31	43
2013-06-30	77
2013-09-30	71
2013-12-31	12
2014-03-31	2
2014-06-30	3
2014-09-30	2
2014-12-31	2
2015-03-31	1
2015-06-30	6
2015-09-30	6
2015-12-31	6
2016-03-31	20
2016-06-30	24
2016-09-30	25
2016-12-31	21
2017-03-31	1
2017-06-30	0
2017-09-30	1
2017-12-31	1
2018-03-31	1
2018-06-30	0
2018-09-30	1
2018-12-31	1
2019-03-31	1
2019-06-30	1
2019-09-30	0
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	1
2021-03-31	1
2021-06-30	1
2021-09-30	1
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0