Quarter	US dollars
2004-12-31	15
2005-03-31	11
2005-06-30	9
2005-09-30	2
2005-12-31	9
2006-03-31	5
2006-06-30	6
2006-09-30	4
2006-12-31	6
2007-03-31	10
2007-06-30	10
2007-09-30	2
2007-12-31	4
2008-03-31	40
2008-06-30	52
2008-09-30	75
2008-12-31	63
2009-03-31	50
2009-06-30	46
2009-09-30	51
2009-12-31	42
2010-03-31	27
2010-06-30	36
2010-09-30	33
2010-12-31	38
2011-03-31	37
2011-06-30	32
2011-09-30	61
2011-12-31	36
2012-03-31	10
2012-06-30	28
2012-09-30	81
2012-12-31	102
2013-03-31	83
2013-06-30	55
2013-09-30	76
2013-12-31	101
2014-03-31	67
2014-06-30	43
2014-09-30	45
2014-12-31	44
2015-03-31	53
2015-06-30	52
2015-09-30	47
2015-12-31	47
2016-03-31	46
2016-06-30	44
2016-09-30	45
2016-12-31	43
2017-03-31	45
2017-06-30	45
2017-09-30	50
2017-12-31	36
2018-03-31	34
2018-06-30	11
2018-09-30	3
2018-12-31	4
2019-03-31	4
2019-06-30	3
2019-09-30	2
2019-12-31	1
2020-03-31	1
2020-06-30	4
2020-09-30	5
2020-12-31	1
2021-03-31	1
2021-06-30	4
2021-09-30	1
2021-12-31	1
2022-03-31	0
2022-06-30	1
2022-09-30	1
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0