Quarter	US dollars
2004-12-31	8
2005-03-31	19
2005-06-30	66
2005-09-30	149
2005-12-31	15
2006-03-31	102
2006-06-30	85
2006-09-30	86
2006-12-31	53
2007-03-31	133
2007-06-30	132
2007-09-30	139
2007-12-31	46
2008-03-31	30
2008-06-30	38
2008-09-30	16
2008-12-31	14
2009-03-31	14
2009-06-30	16
2009-09-30	18
2009-12-31	18
2010-03-31	17
2010-06-30	18
2010-09-30	22
2010-12-31	17
2011-03-31	14
2011-06-30	24
2011-09-30	22
2011-12-31	9
2012-03-31	6
2012-06-30	6
2012-09-30	3
2012-12-31	5
2013-03-31	3
2013-06-30	3
2013-09-30	3
2013-12-31	3
2014-03-31	3
2014-06-30	3
2014-09-30	5
2014-12-31	0
2015-03-31	1
2015-06-30	0
2015-09-30	0
2015-12-31	1
2016-03-31	16
2016-06-30	1
2016-09-30	1
2016-12-31	7
2017-03-31	30
2017-06-30	44
2017-09-30	12
2017-12-31	68
2018-03-31	116
2018-06-30	63
2018-09-30	61
2018-12-31	1
2019-03-31	66
2019-06-30	73
2019-09-30	6
2019-12-31	3
2020-03-31	10
2020-06-30	7
2020-09-30	52
2020-12-31	4
2021-03-31	51
2021-06-30	51
2021-09-30	7
2021-12-31	7
2022-03-31	18
2022-06-30	11
2022-09-30	5
2022-12-31	18
2023-03-31	6
2023-06-30	16
2023-09-30	27