Quarter	US dollars
2004-12-31	6
2005-03-31	6
2005-06-30	7
2005-09-30	7
2005-12-31	12
2006-03-31	9
2006-06-30	7
2006-09-30	9
2006-12-31	27
2007-03-31	8
2007-06-30	6
2007-09-30	8
2007-12-31	14
2008-03-31	6
2008-06-30	14
2008-09-30	12
2008-12-31	6
2009-03-31	13
2009-06-30	12
2009-09-30	46
2009-12-31	31
2010-03-31	53
2010-06-30	57
2010-09-30	72
2010-12-31	92
2011-03-31	74
2011-06-30	85
2011-09-30	76
2011-12-31	63
2012-03-31	74
2012-06-30	80
2012-09-30	78
2012-12-31	78
2013-03-31	91
2013-06-30	86
2013-09-30	83
2013-12-31	81
2014-03-31	87
2014-06-30	91
2014-09-30	117
2014-12-31	112
2015-03-31	123
2015-06-30	134
2015-09-30	167
2015-12-31	138
2016-03-31	59
2016-06-30	71
2016-09-30	77
2016-12-31	9
2017-03-31	6
2017-06-30	79
2017-09-30	86
2017-12-31	57
2018-03-31	77
2018-06-30	57
2018-09-30	56
2018-12-31	59
2019-03-31	65
2019-06-30	38
2019-09-30	26
2019-12-31	41
2020-03-31	36
2020-06-30	41
2020-09-30	34
2020-12-31	15
2021-03-31	29
2021-06-30	18
2021-09-30	27
2021-12-31	31
2022-03-31	13
2022-06-30	8
2022-09-30	5
2022-12-31	13
2023-03-31	20
2023-06-30	22
2023-09-30	5