Quarter	US dollars
2004-12-31	0
2005-03-31	6
2005-06-30	9
2005-09-30	7
2005-12-31	88
2006-03-31	3
2006-06-30	2
2006-09-30	15
2006-12-31	23
2007-03-31	78
2007-06-30	40
2007-09-30	122
2007-12-31	64
2008-03-31	16
2008-06-30	26
2008-09-30	12
2008-12-31	7
2009-03-31	33
2009-06-30	3
2009-09-30	13
2009-12-31	37
2010-03-31	6
2010-06-30	9
2010-09-30	95
2010-12-31	83
2011-03-31	5
2011-06-30	31
2011-09-30	76
2011-12-31	0
2012-03-31	11
2012-06-30	66
2012-09-30	79
2012-12-31	100
2013-03-31	36
2013-06-30	26
2013-09-30	76
2013-12-31	109
2014-03-31	48
2014-06-30	41
2014-09-30	31
2014-12-31	31
2015-03-31	129
2015-06-30	14
2015-09-30	11
2015-12-31	13
2016-03-31	14
2016-06-30	21
2016-09-30	34
2016-12-31	16
2017-03-31	19
2017-06-30	34
2017-09-30	24
2017-12-31	32
2018-03-31	36
2018-06-30	49
2018-09-30	40
2018-12-31	29
2019-03-31	29
2019-06-30	52
2019-09-30	59
2019-12-31	44
2020-03-31	112
2020-06-30	129
2020-09-30	142
2020-12-31	147
2021-03-31	97
2021-06-30	11
2021-09-30	1
2021-12-31	3
2022-03-31	1
2022-06-30	13
2022-09-30	8
2022-12-31	5
2023-03-31	0
2023-06-30	0
2023-09-30	1