Quarter	US dollars
2004-12-31	60
2005-03-31	72
2005-06-30	59
2005-09-30	48
2005-12-31	7
2006-03-31	38
2006-06-30	63
2006-09-30	32
2006-12-31	29
2007-03-31	182
2007-06-30	211
2007-09-30	35
2007-12-31	38
2008-03-31	38
2008-06-30	42
2008-09-30	25
2008-12-31	12
2009-03-31	3
2009-06-30	12
2009-09-30	14
2009-12-31	15
2010-03-31	42
2010-06-30	33
2010-09-30	22
2010-12-31	204
2011-03-31	155
2011-06-30	202
2011-09-30	156
2011-12-31	119
2012-03-31	158
2012-06-30	111
2012-09-30	197
2012-12-31	511
2013-03-31	621
2013-06-30	369
2013-09-30	217
2013-12-31	122
2014-03-31	68
2014-06-30	50
2014-09-30	92
2014-12-31	80
2015-03-31	62
2015-06-30	19
2015-09-30	48
2015-12-31	-16
2016-03-31	122
2016-06-30	77
2016-09-30	43
2016-12-31	41
2017-03-31	70
2017-06-30	105
2017-09-30	32
2017-12-31	97
2018-03-31	131
2018-06-30	-8
2018-09-30	-10
2018-12-31	47
2019-03-31	47
2019-06-30	62
2019-09-30	87
2019-12-31	30
2020-03-31	62
2020-06-30	146
2020-09-30	176
2020-12-31	111
2021-03-31	120
2021-06-30	-14
2021-09-30	116
2021-12-31	26
2022-03-31	26
2022-06-30	50
2022-09-30	62
2022-12-31	20
2023-03-31	80
2023-06-30	135
2023-09-30	88