Quarter	US dollars
2004-12-31	50
2005-03-31	26
2005-06-30	36
2005-09-30	32
2005-12-31	39
2006-03-31	42
2006-06-30	22
2006-09-30	21
2006-12-31	25
2007-03-31	24
2007-06-30	24
2007-09-30	26
2007-12-31	135
2008-03-31	125
2008-06-30	131
2008-09-30	29
2008-12-31	36
2009-03-31	63
2009-06-30	46
2009-09-30	117
2009-12-31	86
2010-03-31	61
2010-06-30	67
2010-09-30	74
2010-12-31	70
2011-03-31	43
2011-06-30	43
2011-09-30	45
2011-12-31	45
2012-03-31	50
2012-06-30	58
2012-09-30	129
2012-12-31	128
2013-03-31	32
2013-06-30	20
2013-09-30	23
2013-12-31	18
2014-03-31	15
2014-06-30	21
2014-09-30	34
2014-12-31	30
2015-03-31	49
2015-06-30	120
2015-09-30	100
2015-12-31	122
2016-03-31	152
2016-06-30	150
2016-09-30	131
2016-12-31	125
2017-03-31	253
2017-06-30	3
2017-09-30	4
2017-12-31	3
2018-03-31	3
2018-06-30	4
2018-09-30	3
2018-12-31	4
2019-03-31	4
2019-06-30	4
2019-09-30	2
2019-12-31	1
2020-03-31	1
2020-06-30	4
2020-09-30	4
2020-12-31	4
2021-03-31	6
2021-06-30	8
2021-09-30	8
2021-12-31	7
2022-03-31	3
2022-06-30	2
2022-09-30	3
2022-12-31	3
2023-03-31	1
2023-06-30	2
2023-09-30	2