Quarter	US dollars
2004-12-31	134
2005-03-31	60
2005-06-30	59
2005-09-30	58
2005-12-31	51
2006-03-31	56
2006-06-30	52
2006-09-30	50
2006-12-31	49
2007-03-31	47
2007-06-30	48
2007-09-30	43
2007-12-31	42
2008-03-31	48
2008-06-30	46
2008-09-30	48
2008-12-31	36
2009-03-31	39
2009-06-30	100
2009-09-30	38
2009-12-31	34
2010-03-31	32
2010-06-30	195
2010-09-30	52
2010-12-31	45
2011-03-31	45
2011-06-30	40
2011-09-30	26
2011-12-31	28
2012-03-31	24
2012-06-30	16
2012-09-30	6
2012-12-31	6
2013-03-31	3
2013-06-30	6
2013-09-30	5
2013-12-31	0
2014-03-31	0
2014-06-30	0
2014-09-30	50
2014-12-31	75
2015-03-31	80
2015-06-30	79
2015-09-30	74
2015-12-31	76
2016-03-31	79
2016-06-30	77
2016-09-30	75
2016-12-31	76
2017-03-31	76
2017-06-30	75
2017-09-30	0
2017-12-31	0
2018-03-31	1
2018-06-30	-1
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	0
2021-06-30	1
2021-09-30	1
2021-12-31	1
2022-03-31	1
2022-06-30	1
2022-09-30	0
2022-12-31	1
2023-03-31	0
2023-06-30	0
2023-09-30	0