Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	0
2005-12-31	0
2006-03-31	0
2006-06-30	0
2006-09-30	0
2006-12-31	0
2007-03-31	0
2007-06-30	0
2007-09-30	0
2007-12-31	0
2008-03-31	0
2008-06-30	0
2008-09-30	0
2008-12-31	0
2009-03-31	0
2009-06-30	0
2009-09-30	0
2009-12-31	0
2010-03-31	26
2010-06-30	33
2010-09-30	0
2010-12-31	0
2011-03-31	75
2011-06-30	80
2011-09-30	9
2011-12-31	12
2012-03-31	11
2012-06-30	8
2012-09-30	8
2012-12-31	10
2013-03-31	8
2013-06-30	8
2013-09-30	10
2013-12-31	71
2014-03-31	62
2014-06-30	356
2014-09-30	13
2014-12-31	95
2015-03-31	92
2015-06-30	8
2015-09-30	8
2015-12-31	10
2016-03-31	7
2016-06-30	9
2016-09-30	10
2016-12-31	7
2017-03-31	8
2017-06-30	6
2017-09-30	7
2017-12-31	8
2018-03-31	6
2018-06-30	8
2018-09-30	10
2018-12-31	11
2019-03-31	12
2019-06-30	13
2019-09-30	14
2019-12-31	16
2020-03-31	14
2020-06-30	16
2020-09-30	3
2020-12-31	0
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	-2
2023-06-30	0
2023-09-30	0