Quarter	US dollars
2004-12-31	6
2005-03-31	13
2005-06-30	14
2005-09-30	35
2005-12-31	33
2006-03-31	38
2006-06-30	33
2006-09-30	28
2006-12-31	23
2007-03-31	120
2008-03-31	14
2008-06-30	14
2008-09-30	12
2008-12-31	13
2009-03-31	9
2009-06-30	8
2009-09-30	8
2009-12-31	3
2010-03-31	3
2010-06-30	1
2010-09-30	2
2010-12-31	2
2011-03-31	2
2011-06-30	10
2014-09-30	5
2014-12-31	5
2015-03-31	0
2015-06-30	0
2015-09-30	0
2015-12-31	1
2016-03-31	1
2016-06-30	1
2016-09-30	3
2016-12-31	1
2017-03-31	5
2017-06-30	4
2017-09-30	4
2017-12-31	100
2018-03-31	13
2018-06-30	24
2018-09-30	44
2018-12-31	59
2019-03-31	74
2019-06-30	0
2019-09-30	0
2019-12-31	0
2020-03-31	0
2020-06-30	33
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