Quarter	US dollars
2004-12-31	25
2005-03-31	23
2005-06-30	20
2005-09-30	23
2005-12-31	29
2006-03-31	31
2006-06-30	30
2006-09-30	34
2006-12-31	157
2007-03-31	37
2007-06-30	20
2007-09-30	35
2007-12-31	44
2008-03-31	30
2008-06-30	78
2008-09-30	78
2008-12-31	14
2009-03-31	44
2009-06-30	46
2009-09-30	27
2009-12-31	11
2010-03-31	59
2010-06-30	130
2010-09-30	180
2010-12-31	80
2011-03-31	45
2011-06-30	29
2011-09-30	26
2011-12-31	37
2012-03-31	34
2012-06-30	27
2012-09-30	37
2012-12-31	13
2013-03-31	15
2013-06-30	12
2013-09-30	16
2013-12-31	7
2014-03-31	7
2014-06-30	7
2014-09-30	3
2014-12-31	6
2015-03-31	3
2015-06-30	5
2015-09-30	24
2015-12-31	1
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	0
2017-09-30	0
2017-12-31	0
2018-03-31	0
2018-06-30	0
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	14
2021-03-31	0
2021-06-30	0
2021-09-30	0
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