Quarter	US dollars
2004-12-31	4
2005-03-31	8
2005-06-30	9
2005-09-30	0
2005-12-31	3
2006-03-31	5
2006-06-30	0
2006-09-30	0
2006-12-31	10
2007-03-31	8
2007-06-30	4
2007-09-30	8
2007-12-31	12
2008-03-31	40
2008-06-30	50
2008-09-30	39
2008-12-31	29
2009-03-31	10
2009-06-30	16
2009-09-30	24
2009-12-31	13
2010-03-31	14
2010-06-30	9
2010-09-30	19
2010-12-31	5
2011-03-31	26
2011-06-30	43
2011-09-30	58
2011-12-31	77
2012-03-31	43
2012-06-30	74
2012-09-30	39
2012-12-31	26
2013-03-31	70
2013-06-30	100
2013-09-30	92
2013-12-31	69
2014-03-31	60
2014-06-30	29
2014-09-30	10
2014-12-31	16
2015-03-31	12
2015-06-30	3
2015-09-30	20
2015-12-31	16
2016-03-31	16
2016-06-30	23
2016-09-30	25
2016-12-31	49
2017-03-31	39
2017-06-30	21
2017-09-30	12
2017-12-31	30
2018-03-31	31
2018-06-30	25
2018-09-30	16
2018-12-31	9
2019-03-31	13
2019-06-30	10
2019-09-30	6
2019-12-31	9
2020-03-31	32
2020-06-30	31
2020-09-30	5
2020-12-31	4
2021-03-31	12
2021-06-30	3
2021-09-30	1
2021-12-31	3
2022-03-31	3
2022-06-30	4
2022-09-30	4
2022-12-31	3
2023-03-31	6
2023-06-30	7
2023-09-30	0