Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	9
2005-12-31	3
2006-03-31	0
2006-06-30	0
2006-09-30	39
2006-12-31	0
2007-03-31	6
2007-06-30	30
2007-09-30	18
2007-12-31	10
2008-03-31	2
2008-06-30	0
2008-09-30	100
2008-12-31	72
2009-03-31	17
2009-06-30	79
2009-09-30	72
2009-12-31	36
2010-03-31	68
2010-06-30	12
2010-09-30	107
2010-12-31	161
2011-03-31	271
2011-06-30	215
2011-09-30	157
2011-12-31	887
2012-03-31	423
2012-06-30	508
2012-09-30	325
2012-12-31	19
2013-03-31	20
2013-06-30	30
2013-09-30	24
2013-12-31	25
2014-03-31	25
2014-06-30	32
2014-09-30	29
2014-12-31	27
2015-03-31	43
2015-06-30	20
2015-09-30	27
2015-12-31	12
2016-03-31	4
2016-06-30	1
2016-09-30	1
2016-12-31	5
2017-03-31	1
2017-06-30	0
2017-09-30	7
2017-12-31	7
2018-03-31	7
2018-06-30	0
2018-09-30	160
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