Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	21
2005-12-31	17
2006-03-31	29
2006-06-30	0
2006-09-30	6
2006-12-31	16
2007-03-31	8
2007-06-30	8
2007-09-30	10
2007-12-31	14
2008-03-31	26
2008-06-30	38
2008-09-30	34
2008-12-31	26
2009-03-31	17
2009-06-30	26
2009-09-30	30
2009-12-31	18
2010-03-31	17
2010-06-30	19
2010-09-30	36
2010-12-31	45
2011-03-31	42
2011-06-30	29
2011-09-30	31
2011-12-31	53
2012-03-31	59
2012-06-30	30
2012-09-30	39
2012-12-31	116
2013-03-31	118
2013-06-30	67
2013-09-30	105
2013-12-31	106
2014-03-31	103
2014-06-30	34
2014-09-30	16
2014-12-31	80
2015-03-31	52
2015-06-30	31
2015-09-30	100
2015-12-31	61
2016-03-31	98
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	0
2017-09-30	0
2017-12-31	0
2018-03-31	0
2018-06-30	4
2018-09-30	4
2018-12-31	5
2019-03-31	16
2019-06-30	4
2019-09-30	5
2019-12-31	4
2020-03-31	6
2020-06-30	6
2020-09-30	4
2020-12-31	4
2021-03-31	6
2021-06-30	7
2021-09-30	5
2021-12-31	4
2022-03-31	4
2022-06-30	6
2022-09-30	8
2022-12-31	9
2023-03-31	8
2023-06-30	12
2023-09-30	5