Quarter	US dollars
2004-12-31	42
2005-03-31	45
2005-06-30	54
2005-09-30	51
2005-12-31	50
2006-03-31	73
2006-06-30	70
2006-09-30	71
2006-12-31	67
2007-03-31	2
2007-06-30	2
2007-09-30	2
2007-12-31	14
2008-03-31	30
2008-06-30	20
2008-09-30	20
2008-12-31	10
2009-03-31	7
2009-06-30	2
2009-09-30	2
2009-12-31	2
2010-03-31	0
2010-06-30	6
2010-09-30	28
2010-12-31	28
2011-03-31	197
2011-06-30	85
2011-09-30	215
2011-12-31	54
2012-03-31	216
2012-06-30	180
2012-09-30	57
2012-12-31	50
2013-03-31	62
2013-06-30	42
2013-09-30	40
2013-12-31	102
2014-03-31	77
2014-06-30	44
2014-09-30	47
2014-12-31	30
2015-03-31	28
2015-06-30	20
2015-09-30	21
2015-12-31	12
2016-03-31	111
2016-06-30	85
2016-09-30	127
2016-12-31	127
2017-03-31	109
2017-06-30	-1
2017-09-30	1
2017-12-31	80
2018-03-31	80
2018-06-30	92
2018-09-30	9
2018-12-31	11
2019-03-31	13
2019-06-30	27
2019-09-30	14
2019-12-31	12
2020-03-31	16
2020-06-30	17
2020-09-30	10
2020-12-31	3
2021-03-31	3
2021-06-30	3
2021-09-30	4
2021-12-31	1
2022-03-31	3
2022-06-30	2
2022-09-30	3
2022-12-31	2
2023-03-31	2
2023-06-30	3
2023-09-30	2