Quarter	US dollars
2004-12-31	98
2005-03-31	76
2005-06-30	75
2005-09-30	87
2005-12-31	19
2006-03-31	17
2006-06-30	17
2006-09-30	15
2006-12-31	74
2007-03-31	76
2007-06-30	70
2007-09-30	71
2007-12-31	64
2008-03-31	93
2008-06-30	105
2008-09-30	93
2008-12-31	89
2009-03-31	64
2009-06-30	59
2009-09-30	99
2009-12-31	74
2010-03-31	71
2010-06-30	54
2010-09-30	66
2010-12-31	72
2011-03-31	85
2011-06-30	120
2011-09-30	126
2011-12-31	165
2012-03-31	182
2012-06-30	199
2012-09-30	147
2012-12-31	134
2013-03-31	188
2013-06-30	208
2013-09-30	167
2013-12-31	86
2014-03-31	73
2014-06-30	44
2014-09-30	24
2014-12-31	31
2015-03-31	30
2015-06-30	24
2015-09-30	39
2015-12-31	36
2016-03-31	32
2016-06-30	50
2016-09-30	55
2016-12-31	73
2017-03-31	54
2017-06-30	36
2017-09-30	35
2017-12-31	41
2018-03-31	48
2018-06-30	25
2018-09-30	14
2018-12-31	-1
2019-03-31	7
2019-06-30	0
2019-09-30	111
2019-12-31	8
2020-03-31	25
2020-06-30	40
2020-09-30	5
2020-12-31	7
2021-03-31	-1
2021-06-30	3
2021-09-30	-5
2021-12-31	12
2022-03-31	-24
2022-06-30	24
2022-09-30	31
2022-12-31	14
2023-03-31	8
2023-06-30	27
2023-09-30	36