Quarter	US dollars
1999-09-30	0
1999-12-31	0
2000-03-31	2
2000-06-30	0
2000-09-30	0
2000-12-31	0
2001-03-31	30
2001-06-30	0
2001-09-30	0
2001-12-31	0
2002-03-31	0
2002-06-30	105
2002-09-30	0
2002-12-31	2
2003-03-31	109
2003-06-30	0
2003-09-30	5
2003-12-31	0
2004-03-31	4
2004-06-30	4
2004-09-30	0
2004-12-31	0
2005-03-31	2
2005-06-30	0
2005-09-30	0
2005-12-31	5
2006-03-31	0
2006-06-30	85
2006-09-30	2
2006-12-31	10
2007-03-31	2
2007-06-30	16
2007-09-30	2
2007-12-31	2
2008-03-31	18
2008-06-30	2
2008-09-30	2
2008-12-31	7
2009-03-31	19
2009-06-30	2
2009-09-30	3
2009-12-31	31
2010-03-31	24
2010-06-30	24
2010-09-30	30
2010-12-31	25
2011-03-31	29
2011-06-30	50
2011-09-30	22
2011-12-31	36
2012-03-31	26
2012-06-30	22
2012-09-30	24
2012-12-31	24
2013-03-31	41
2013-06-30	39
2013-09-30	45
2013-12-31	43
2014-03-31	43
2014-06-30	43
2014-09-30	29
2014-12-31	69
2015-03-31	43
2015-06-30	42
2015-09-30	0
2015-12-31	0
2016-03-31	0
2016-06-30	0
2016-09-30	0
2016-12-31	0
2017-03-31	0
2017-06-30	0
2017-09-30	0
2017-12-31	0
2018-03-31	0
2018-06-30	0
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	0
2021-06-30	0
2021-09-30	0
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