Quarter	US dollars
2004-12-31	284
2005-03-31	361
2005-06-30	355
2005-09-30	267
2005-12-31	359
2006-03-31	340
2006-06-30	420
2006-09-30	400
2006-12-31	266
2007-03-31	243
2007-06-30	207
2007-09-30	204
2007-12-31	157
2008-03-31	151
2008-06-30	159
2008-09-30	125
2008-12-31	95
2009-03-31	89
2009-06-30	84
2009-09-30	82
2009-12-31	71
2010-03-31	70
2010-06-30	33
2010-09-30	20
2010-12-31	27
2011-03-31	26
2011-06-30	10
2011-09-30	9
2011-12-31	17
2012-03-31	16
2012-06-30	16
2012-09-30	16
2012-12-31	16
2013-03-31	8
2013-06-30	8
2013-09-30	10
2013-12-31	10
2014-03-31	10
2014-06-30	5
2014-09-30	5
2014-12-31	5
2015-03-31	4
2015-06-30	5
2015-09-30	5
2015-12-31	0
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	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