Quarter	US dollars
2004-12-31	29
2005-03-31	28
2005-06-30	32
2005-09-30	41
2005-12-31	19
2006-03-31	42
2006-06-30	41
2006-09-30	49
2006-12-31	41
2007-03-31	53
2007-06-30	48
2007-09-30	49
2007-12-31	50
2008-03-31	70
2008-06-30	78
2008-09-30	82
2008-12-31	91
2009-03-31	106
2009-06-30	92
2009-09-30	104
2009-12-31	134
2010-03-31	117
2010-06-30	151
2010-09-30	186
2010-12-31	199
2011-03-31	316
2011-06-30	265
2011-09-30	184
2011-12-31	210
2012-03-31	225
2012-06-30	237
2012-09-30	184
2012-12-31	225
2013-03-31	249
2013-06-30	226
2013-09-30	215
2013-12-31	190
2014-03-31	237
2014-06-30	215
2014-09-30	185
2014-12-31	189
2015-03-31	193
2015-06-30	195
2015-09-30	0
2015-12-31	0
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	0
2017-09-30	-1
2017-12-31	-8
2018-03-31	0
2018-06-30	1
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	1
2023-03-31	1
2023-06-30	0
2023-09-30	0