Quarter	US dollars
2004-12-31	29
2005-03-31	26
2005-06-30	36
2005-09-30	34
2005-12-31	62
2006-03-31	64
2006-06-30	107
2006-09-30	99
2006-12-31	80
2007-03-31	110
2007-06-30	94
2007-09-30	106
2007-12-31	98
2008-03-31	74
2008-06-30	78
2008-09-30	71
2008-12-31	45
2009-03-31	54
2009-06-30	54
2009-09-30	37
2009-12-31	24
2010-03-31	46
2010-06-30	42
2010-09-30	30
2010-12-31	11
2011-03-31	16
2011-06-30	16
2011-09-30	9
2011-12-31	15
2012-03-31	5
2012-06-30	3
2012-09-30	40
2012-12-31	42
2013-03-31	0
2013-06-30	0
2013-09-30	0
2013-12-31	2
2014-03-31	0
2014-06-30	2
2014-09-30	2
2014-12-31	0
2015-03-31	0
2015-06-30	-2
2015-09-30	6
2015-12-31	0
2016-03-31	0
2016-06-30	1
2016-09-30	0
2016-12-31	0
2017-03-31	-1
2017-06-30	0
2017-09-30	3
2017-12-31	-1
2018-03-31	0
2018-06-30	1
2018-09-30	7
2018-12-31	0
2019-03-31	14
2019-06-30	-4
2019-09-30	1
2019-12-31	-3
2020-03-31	5
2020-06-30	-6
2020-09-30	-1
2020-12-31	-8
2021-03-31	-6
2021-06-30	11
2021-09-30	12
2021-12-31	5
2022-03-31	5
2022-06-30	5
2022-09-30	5
2022-12-31	2
2023-03-31	-1
2023-06-30	-3
2023-09-30	8