Quarter	US dollars
2004-12-31	111
2005-03-31	110
2005-06-30	81
2005-09-30	80
2005-12-31	77
2006-03-31	5
2006-06-30	9
2006-09-30	7
2006-12-31	8
2007-03-31	8
2007-06-30	12
2007-09-30	6
2007-12-31	30
2008-03-31	28
2008-06-30	26
2008-09-30	23
2008-12-31	37
2009-03-31	34
2009-06-30	28
2009-09-30	62
2009-12-31	55
2010-03-31	103
2010-06-30	129
2010-09-30	82
2010-12-31	136
2011-03-31	98
2011-06-30	135
2011-09-30	193
2011-12-31	148
2012-03-31	145
2012-06-30	138
2012-09-30	147
2012-12-31	136
2013-03-31	141
2013-06-30	130
2013-09-30	126
2013-12-31	122
2014-03-31	175
2014-06-30	147
2014-09-30	135
2014-12-31	144
2015-03-31	162
2015-06-30	179
2015-09-30	158
2015-12-31	173
2016-03-31	170
2016-06-30	128
2016-09-30	114
2016-12-31	49
2017-03-31	38
2017-06-30	1
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
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	0
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0