Quarter	US dollars
2004-12-31	167
2005-03-31	291
2005-06-30	81
2005-09-30	108
2005-12-31	55
2006-03-31	25
2006-06-30	43
2006-09-30	64
2006-12-31	44
2007-03-31	41
2007-06-30	36
2007-09-30	24
2007-12-31	0
2008-03-31	42
2008-06-30	42
2008-09-30	71
2008-12-31	173
2009-03-31	135
2009-06-30	89
2009-09-30	75
2009-12-31	87
2010-03-31	149
2010-06-30	437
2010-09-30	139
2010-12-31	495
2011-03-31	247
2011-06-30	122
2011-09-30	206
2011-12-31	85
2012-03-31	62
2012-06-30	174
2012-09-30	150
2012-12-31	205
2013-03-31	184
2013-06-30	161
2013-09-30	227
2013-12-31	431
2014-03-31	524
2014-06-30	978
2014-09-30	149
2014-12-31	219
2015-03-31	291
2015-06-30	107
2015-09-30	83
2015-12-31	80
2016-03-31	139
2016-06-30	138
2016-09-30	275
2016-12-31	140
2017-03-31	278
2017-06-30	110
2017-09-30	58
2017-12-31	59
2018-03-31	74
2018-06-30	82
2018-09-30	85
2018-12-31	40
2019-03-31	36
2019-06-30	104
2019-09-30	75