Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	0
2005-12-31	0
2006-03-31	0
2006-06-30	0
2006-09-30	0
2006-12-31	114
2007-03-31	126
2007-06-30	136
2007-09-30	149
2007-12-31	117
2008-03-31	151
2008-06-30	135
2008-09-30	134
2008-12-31	164
2009-03-31	135
2009-06-30	249
2009-09-30	141
2009-12-31	137
2010-03-31	180
2010-06-30	241
2010-09-30	236
2010-12-31	257
2011-03-31	301
2011-06-30	334
2011-09-30	299
2011-12-31	243
2012-03-31	251
2012-06-30	223
2012-09-30	186
2012-12-31	0
2013-03-31	0
2013-06-30	0
2013-09-30	0
2013-12-31	33
2014-03-31	47
2014-06-30	46
2014-09-30	32
2014-12-31	0
2015-03-31	0
2015-06-30	0
2015-09-30	79
2015-12-31	127
2016-03-31	128
2016-06-30	118
2016-09-30	118
2016-12-31	49
2017-03-31	3
2017-06-30	3
2017-09-30	1
2017-12-31	30
2018-03-31	0
2018-06-30	-7
2018-09-30	9
2018-12-31	4
2019-03-31	22
2019-06-30	4
2019-09-30	38
2019-12-31	50
2020-03-31	27
2020-06-30	6
2020-09-30	5
2020-12-31	5
2021-03-31	1
2021-06-30	6
2021-09-30	3
2021-12-31	-3
2022-03-31	1
2022-06-30	-4
2022-09-30	2
2022-12-31	7
2023-03-31	10
2023-06-30	0
2023-09-30	0