Quarter	US dollars
2004-12-31	10
2005-03-31	38
2005-06-30	13
2005-09-30	7
2005-12-31	24
2006-03-31	7
2006-06-30	24
2006-09-30	35
2006-12-31	57
2007-03-31	65
2007-06-30	48
2007-09-30	49
2007-12-31	48
2008-03-31	48
2008-06-30	30
2008-09-30	36
2008-12-31	40
2009-03-31	32
2009-06-30	33
2009-09-30	26
2009-12-31	24
2010-03-31	46
2010-06-30	28
2010-09-30	28
2010-12-31	28
2011-03-31	27
2011-06-30	157
2011-09-30	28
2011-12-31	127
2012-03-31	97
2012-06-30	246
2012-09-30	249
2012-12-31	257
2013-03-31	231
2013-06-30	235
2013-09-30	243
2013-12-31	226
2014-03-31	225
2014-06-30	212
2014-09-30	177
2014-12-31	169
2015-03-31	156
2015-06-30	75
2015-09-30	68
2015-12-31	73
2016-03-31	37
2016-06-30	24
2016-09-30	21
2016-12-31	18
2017-03-31	28
2017-06-30	256
2017-09-30	21
2017-12-31	12
2018-03-31	18
2018-06-30	46
2018-09-30	8
2018-12-31	27
2019-03-31	25
2019-06-30	19
2019-09-30	7
2019-12-31	7
2020-03-31	6
2020-06-30	23
2020-09-30	27
2020-12-31	27
2021-03-31	150
2021-06-30	145
2021-09-30	142
2021-12-31	173
2022-03-31	175
2022-06-30	166
2022-09-30	157
2022-12-31	138
2023-03-31	44
2023-06-30	151
2023-09-30	149