Quarter	US dollars
2004-12-31	44
2005-03-31	47
2005-06-30	43
2005-09-30	30
2005-12-31	27
2006-03-31	24
2006-06-30	43
2006-09-30	35
2006-12-31	106
2007-03-31	108
2007-06-30	120
2007-09-30	57
2007-12-31	102
2008-03-31	117
2008-06-30	107
2008-09-30	102
2008-12-31	150
2009-03-31	163
2009-06-30	166
2009-09-30	130
2009-12-31	124
2010-03-31	64
2010-06-30	46
2010-09-30	50
2010-12-31	58
2011-03-31	48
2011-06-30	47
2011-09-30	51
2011-12-31	97
2012-03-31	86
2012-06-30	110
2012-09-30	95
2012-12-31	84
2013-03-31	83
2013-06-30	79
2013-09-30	84
2013-12-31	86
2014-03-31	92
2014-06-30	92
2014-09-30	104
2014-12-31	81
2015-03-31	74
2015-06-30	75
2015-09-30	2
2015-12-31	1
2016-03-31	1
2016-06-30	1
2016-09-30	1
2016-12-31	1
2017-03-31	0
2017-06-30	0
2017-09-30	0
2017-12-31	0
2018-03-31	3
2018-06-30	7
2018-09-30	5
2018-12-31	5
2019-03-31	5
2019-06-30	4
2019-09-30	4
2019-12-31	4
2020-03-31	4
2020-06-30	2
2020-09-30	4
2020-12-31	3
2021-03-31	3
2021-06-30	1
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