Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	0
2005-12-31	2
2006-03-31	2
2006-06-30	2
2006-09-30	2
2006-12-31	2
2007-03-31	2
2007-06-30	2
2007-09-30	4
2007-12-31	2
2008-03-31	28
2008-06-30	20
2008-09-30	9
2008-12-31	17
2009-03-31	17
2009-06-30	10
2009-09-30	18
2009-12-31	24
2010-03-31	27
2010-06-30	33
2010-09-30	28
2010-12-31	27
2011-03-31	19
2011-06-30	22
2011-09-30	23
2011-12-31	54
2012-03-31	38
2012-06-30	55
2012-09-30	58
2012-12-31	55
2013-03-31	55
2013-06-30	27
2013-09-30	21
2013-12-31	17
2014-03-31	22
2014-06-30	27
2014-09-30	39
2014-12-31	86
2015-03-31	76
2015-06-30	39
2015-09-30	45
2015-12-31	33
2016-03-31	50
2016-06-30	58
2016-09-30	49
2016-12-31	20
2017-03-31	21
2017-06-30	29
2017-09-30	25
2017-12-31	16
2018-03-31	11
2018-06-30	4
2018-09-30	5
2018-12-31	11
2019-03-31	17
2019-06-30	22
2019-09-30	7
2019-12-31	5
2020-03-31	17
2020-06-30	17
2020-09-30	14
2020-12-31	20
2021-03-31	12
2021-06-30	15
2021-09-30	19
2021-12-31	18
2022-03-31	7
2022-06-30	13
2022-09-30	33
2022-12-31	16
2023-03-31	8
2023-06-30	9
2023-09-30	6