Quarter	US dollars
2004-12-31	12
2005-03-31	8
2005-06-30	13
2005-09-30	9
2005-12-31	10
2006-03-31	16
2006-06-30	11
2006-09-30	22
2006-12-31	8
2007-03-31	29
2007-06-30	34
2007-09-30	26
2007-12-31	48
2008-03-31	56
2008-06-30	80
2008-09-30	75
2008-12-31	52
2009-03-31	53
2009-06-30	54
2009-09-30	32
2009-12-31	31
2010-03-31	33
2010-06-30	33
2010-09-30	27
2010-12-31	44
2011-03-31	61
2011-06-30	35
2011-09-30	55
2011-12-31	53
2012-03-31	59
2012-06-30	39
2012-09-30	40
2012-12-31	53
2013-03-31	43
2013-06-30	39
2013-09-30	40
2013-12-31	51
2014-03-31	60
2014-06-30	46
2014-09-30	66
2014-12-31	66
2015-03-31	36
2015-06-30	116
2015-09-30	0
2015-12-31	0
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	0
2017-09-30	0
2017-12-31	0
2018-03-31	0
2018-06-30	0
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0