Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	110
2005-12-31	82
2006-03-31	132
2006-06-30	129
2006-09-30	99
2006-12-31	133
2007-03-31	147
2007-06-30	148
2007-09-30	141
2007-12-31	161
2008-03-31	157
2008-06-30	173
2008-09-30	176
2008-12-31	154
2009-03-31	130
2009-06-30	128
2009-09-30	126
2009-12-31	115
2010-03-31	91
2010-06-30	106
2010-09-30	109
2010-12-31	108
2011-03-31	119
2011-06-30	132
2011-09-30	146
2011-12-31	133
2012-03-31	104
2012-06-30	108
2012-09-30	111
2012-12-31	133
2013-03-31	155
2013-06-30	146
2013-09-30	133
2013-12-31	117
2014-03-31	115
2014-06-30	99
2014-09-30	159
2014-12-31	186
2015-03-31	172
2015-06-30	164
2015-09-30	170
2015-12-31	144
2016-03-31	129
2016-06-30	-4
2016-09-30	-1
2016-12-31	0
2017-03-31	8
2017-06-30	0
2017-09-30	0
2017-12-31	0
2018-03-31	0
2018-06-30	0
2018-09-30	-1
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	-1
2020-09-30	0
2020-12-31	-1
2021-03-31	7
2021-06-30	4
2021-09-30	5
2021-12-31	4
2022-03-31	0
2022-06-30	3
2022-09-30	4
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	5