Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	2
2005-09-30	2
2005-12-31	5
2006-03-31	3
2006-06-30	0
2006-09-30	4
2006-12-31	0
2007-03-31	175
2007-06-30	-58
2007-09-30	173
2007-12-31	249
2008-03-31	388
2008-06-30	302
2008-09-30	417
2008-12-31	588
2009-03-31	254
2009-06-30	186
2009-09-30	190
2009-12-31	178
2010-03-31	17
2010-06-30	21
2010-09-30	24
2010-12-31	8
2011-03-31	24
2011-06-30	24
2011-09-30	76
2011-12-31	71
2012-03-31	30
2012-06-30	22
2012-09-30	19
2012-12-31	8
2013-03-31	6
2013-06-30	8
2013-09-30	10
2013-12-31	10
2014-03-31	7
2014-06-30	7
2014-09-30	10
2014-12-31	14
2015-03-31	15
2015-06-30	16
2015-09-30	24
2015-12-31	24
2016-03-31	20
2016-06-30	30
2016-09-30	25
2016-12-31	31
2017-03-31	24
2017-06-30	22
2017-09-30	1
2017-12-31	0
2018-03-31	0
2018-06-30	0
2018-09-30	0
2018-12-31	5
2019-03-31	1
2019-06-30	1
2019-09-30	0
2019-12-31	1
2020-03-31	4
2020-06-30	0
2020-09-30	0
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	0
2023-06-30	0
2023-09-30	0