Quarter	US dollars
2004-12-31	40
2005-03-31	64
2005-06-30	32
2005-09-30	115
2005-12-31	65
2006-03-31	66
2006-06-30	111
2006-09-30	69
2006-12-31	27
2007-03-31	49
2007-06-30	42
2007-09-30	35
2007-12-31	20
2008-03-31	40
2008-06-30	22
2008-09-30	25
2008-12-31	50
2009-03-31	27
2009-06-30	15
2009-09-30	34
2009-12-31	16
2010-03-31	17
2010-06-30	13
2010-09-30	20
2010-12-31	19
2011-03-31	32
2011-06-30	56
2011-09-30	50
2011-12-31	17
2012-03-31	51
2012-06-30	58
2012-09-30	36
2012-12-31	50
2013-03-31	47
2013-06-30	67
2013-09-30	57
2013-12-31	45
2014-03-31	47
2014-06-30	41
2014-09-30	28
2014-12-31	22
2015-03-31	10
2015-06-30	8
2015-09-30	9
2015-12-31	3
2016-03-31	3
2016-06-30	16
2016-09-30	6
2016-12-31	7
2017-03-31	5
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	15
2020-03-31	52
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