Quarter	US dollars
2004-12-31	186
2005-03-31	170
2005-06-30	158
2005-09-30	159
2005-12-31	125
2006-03-31	142
2006-06-30	152
2006-09-30	121
2006-12-31	131
2007-03-31	124
2007-06-30	24
2007-09-30	77
2007-12-31	62
2008-03-31	89
2008-06-30	10
2008-09-30	73
2008-12-31	122
2009-03-31	105
2009-06-30	94
2009-09-30	98
2009-12-31	92
2010-03-31	123
2010-06-30	99
2010-09-30	107
2010-12-31	142
2011-03-31	167
2011-06-30	215
2011-09-30	229
2011-12-31	261
2012-03-31	268
2012-06-30	249
2012-09-30	231
2012-12-31	280
2013-03-31	316
2013-06-30	265
2013-09-30	272
2013-12-31	36
2014-03-31	37
2014-06-30	38
2014-09-30	36
2014-12-31	31
2015-03-31	31
2015-06-30	31
2015-09-30	30
2015-12-31	33
2016-03-31	33
2016-06-30	32
2016-09-30	32
2016-12-31	137
2017-03-31	35
2017-06-30	35
2017-09-30	17
2017-12-31	18
2018-03-31	14
2018-06-30	11
2018-09-30	18
2018-12-31	13
2019-03-31	10
2019-06-30	6
2019-09-30	7
2019-12-31	4
2020-03-31	2
2020-06-30	4
2020-09-30	4
2020-12-31	3
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	-1
2022-12-31	1
2023-03-31	0
2023-06-30	3
2023-09-30	5