Quarter	US dollars
2004-12-31	4
2005-03-31	4
2005-06-30	2
2005-09-30	4
2005-12-31	5
2006-03-31	3
2006-06-30	4
2006-09-30	6
2006-12-31	4
2007-03-31	4
2007-06-30	4
2007-09-30	6
2007-12-31	22
2008-03-31	127
2008-06-30	94
2008-09-30	132
2008-12-31	158
2009-03-31	96
2009-06-30	84
2009-09-30	43
2009-12-31	26
2010-03-31	9
2010-06-30	3
2010-09-30	5
2010-12-31	993
2011-03-31	2
2011-06-30	6
2011-09-30	6
2011-12-31	19
2012-03-31	2
2012-06-30	3
2012-09-30	3
2012-12-31	2
2013-03-31	5
2013-06-30	6
2013-09-30	11
2013-12-31	23
2014-03-31	33
2014-06-30	34
2014-09-30	24
2014-12-31	33
2015-03-31	25
2015-06-30	8
2015-09-30	18
2015-12-31	24
2016-03-31	20
2016-06-30	30
2016-09-30	38
2016-12-31	64
2017-03-31	0
2017-06-30	48
2017-09-30	119
2017-12-31	132
2018-03-31	65
2018-06-30	50
2018-09-30	53
2018-12-31	120
2019-03-31	184
2019-06-30	123
2019-09-30	166
2019-12-31	357
2020-03-31	305
2020-06-30	189
2020-09-30	59
2020-12-31	0
2021-03-31	0
2021-06-30	0
2021-09-30	0
2021-12-31	3
2022-03-31	90
2022-06-30	91
2022-09-30	149
2022-12-31	180
2023-03-31	184
2023-06-30	131
2023-09-30	147