Quarter	US dollars
2004-12-31	230
2005-03-31	195
2005-06-30	2
2005-09-30	103
2005-12-31	69
2006-03-31	149
2006-06-30	129
2006-09-30	45
2006-12-31	67
2007-03-31	135
2007-06-30	213
2007-09-30	96
2007-12-31	185
2008-03-31	28
2008-06-30	10
2008-09-30	36
2008-12-31	59
2009-03-31	57
2009-06-30	48
2009-09-30	45
2009-12-31	0
2010-03-31	0
2010-06-30	0
2010-09-30	0
2010-12-31	526
2011-03-31	1189
2011-06-30	1185
2011-09-30	226
2011-12-31	656
2012-03-31	1082
2012-06-30	1236
2012-09-30	488
2012-12-31	456
2013-03-31	594
2013-06-30	558
2013-09-30	659
2013-12-31	540
2014-03-31	539
2014-06-30	557
2014-09-30	653
2014-12-31	36
2015-03-31	12
2015-06-30	11
2015-09-30	9
2015-12-31	132
2016-03-31	7
2016-06-30	20
2016-09-30	-3
2016-12-31	26
2017-03-31	-50
2017-06-30	-34
2017-09-30	-25
2017-12-31	-35
2018-03-31	-27
2018-06-30	-21
2018-09-30	-34
2018-12-31	-23
2019-03-31	-22
2019-06-30	-14
2019-09-30	30
2019-12-31	59
2020-03-31	16
2020-06-30	1
2020-09-30	12
2020-12-31	3
2021-03-31	32
2021-06-30	82
2021-09-30	31
2021-12-31	1
2022-03-31	3
2022-06-30	-19
2022-09-30	-15
2022-12-31	-26
2023-03-31	-13
2023-06-30	-19
2023-09-30	-8