Quarter	US dollars
2004-12-31	50
2005-03-31	51
2005-06-30	47
2005-09-30	42
2005-12-31	39
2006-03-31	57
2006-06-30	70
2006-09-30	67
2006-12-31	65
2007-03-31	210
2007-06-30	205
2007-09-30	216
2007-12-31	157
2008-03-31	179
2008-06-30	187
2008-09-30	194
2008-12-31	175
2009-03-31	176
2009-06-30	212
2009-09-30	221
2009-12-31	224
2010-03-31	100
2010-06-30	142
2010-09-30	164
2010-12-31	153
2011-03-31	144
2011-06-30	146
2011-09-30	128
2011-12-31	128
2012-03-31	67
2012-06-30	67
2012-09-30	32
2012-12-31	86
2013-03-31	146
2013-06-30	32
2013-09-30	28
2013-12-31	55
2014-03-31	43
2014-06-30	80
2014-09-30	75
2014-12-31	72
2015-03-31	120
2015-06-30	131
2015-09-30	109
2015-12-31	123
2016-03-31	101
2016-06-30	75
2016-09-30	75
2016-12-31	66
2017-03-31	64
2017-06-30	49
2017-09-30	50
2017-12-31	7
2018-03-31	13
2018-06-30	3
2018-09-30	4
2018-12-31	8
2019-03-31	3
2019-06-30	5
2019-09-30	2
2019-12-31	5
2020-03-31	6
2020-06-30	9
2020-09-30	8
2020-12-31	7
2021-03-31	-1
2021-06-30	-3
2021-09-30	-12
2021-12-31	7
2022-03-31	1
2022-06-30	0
2022-09-30	5
2022-12-31	6
2023-03-31	1
2023-06-30	4
2023-09-30	10