Quarter	US dollars
2004-12-31	77
2005-03-31	85
2005-06-30	70
2005-09-30	71
2005-12-31	62
2006-03-31	43
2006-06-30	46
2006-09-30	37
2006-12-31	37
2007-03-31	49
2007-06-30	70
2007-09-30	61
2007-12-31	64
2008-03-31	99
2008-06-30	98
2008-09-30	91
2008-12-31	93
2009-03-31	92
2009-06-30	76
2009-09-30	85
2009-12-31	82
2010-03-31	196
2010-06-30	129
2010-09-30	126
2010-12-31	139
2011-03-31	130
2011-06-30	119
2011-09-30	101
2011-12-31	79
2012-03-31	107
2012-06-30	136
2012-09-30	78
2012-12-31	89
2013-03-31	164
2013-06-30	132
2013-09-30	110
2013-12-31	73
2014-03-31	102
2014-06-30	34
2014-09-30	24
2014-12-31	19
2015-03-31	16
2015-06-30	36
2015-09-30	36
2015-12-31	28
2016-03-31	29
2016-06-30	20
2016-09-30	5
2016-12-31	10
2017-03-31	26
2017-06-30	6
2017-09-30	7
2017-12-31	7
2018-03-31	4
2018-06-30	4
2018-09-30	4
2018-12-31	4
2019-03-31	4
2019-06-30	1
2019-09-30	1
2019-12-31	13
2020-03-31	1
2020-06-30	1
2020-09-30	1
2020-12-31	1
2021-03-31	1
2021-06-30	1
2021-09-30	1
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0