Quarter	US dollars
2004-12-31	15
2005-03-31	13
2005-06-30	14
2005-09-30	21
2005-12-31	24
2006-03-31	47
2006-06-30	48
2006-09-30	84
2006-12-31	106
2007-03-31	73
2007-06-30	86
2007-09-30	47
2007-12-31	52
2008-03-31	62
2008-06-30	56
2008-09-30	45
2008-12-31	10
2009-03-31	11
2009-06-30	7
2009-09-30	13
2009-12-31	16
2010-03-31	9
2010-06-30	64
2010-09-30	113
2010-12-31	66
2011-03-31	50
2011-06-30	22
2011-09-30	28
2011-12-31	167
2012-03-31	142
2012-06-30	141
2012-09-30	121
2012-12-31	239
2013-03-31	123
2013-06-30	215
2013-09-30	125
2013-12-31	132
2014-03-31	140
2014-06-30	137
2014-09-30	97
2014-12-31	92
2015-03-31	82
2015-06-30	25
2015-09-30	26
2015-12-31	24
2016-03-31	26
2016-06-30	24
2016-09-30	26
2016-12-31	25
2017-03-31	25
2017-06-30	27
2017-09-30	32
2017-12-31	28
2018-03-31	28
2018-06-30	28
2018-09-30	27
2018-12-31	3
2019-03-31	3
2019-06-30	3
2019-09-30	2
2019-12-31	4
2020-03-31	22
2020-06-30	2
2020-09-30	0
2020-12-31	3
2021-03-31	3
2021-06-30	3
2021-09-30	3
2021-12-31	3
2022-03-31	5
2022-06-30	4
2022-09-30	3
2022-12-31	4
2023-03-31	5
2023-06-30	4
2023-09-30	4