Quarter	US dollars
2004-12-31	15
2005-03-31	13
2005-06-30	7
2005-09-30	11
2005-12-31	7
2006-03-31	2
2006-06-30	13
2006-09-30	37
2006-12-31	922
2007-03-31	906
2007-06-30	943
2007-09-30	970
2007-12-31	995
2008-03-31	1030
2008-06-30	1057
2008-09-30	1050
2008-12-31	1029
2009-03-31	1106
2009-06-30	1044
2009-09-30	892
2009-12-31	882
2010-03-31	887
2010-06-30	878
2010-09-30	868
2010-12-31	935
2011-03-31	981
2011-06-30	1045
2011-09-30	1008
2011-12-31	937
2012-03-31	1031
2012-06-30	904
2012-09-30	853
2012-12-31	264
2013-03-31	219
2013-06-30	170
2013-09-30	178
2013-12-31	129
2014-03-31	163
2014-06-30	149
2014-09-30	115
2014-12-31	119
2015-03-31	102
2015-06-30	98
2015-09-30	138
2015-12-31	147
2016-03-31	141
2016-06-30	134
2016-09-30	130
2016-12-31	63
2017-03-31	11
2017-06-30	13
2017-09-30	30
2017-12-31	36
2018-03-31	11
2018-06-30	16
2018-09-30	10
2018-12-31	17
2019-03-31	30
2019-06-30	48
2019-09-30	132
2019-12-31	147
2020-03-31	131
2020-06-30	114
2020-09-30	3
2020-12-31	57
2021-03-31	39
2021-06-30	44
2021-09-30	5
2021-12-31	0
2022-03-31	4
2022-06-30	-9
2022-09-30	0
2022-12-31	0
2023-03-31	4
2023-06-30	7
2023-09-30	3