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	60
2001-03-31	0
2001-06-30	0
2001-09-30	1
2001-12-31	0
2002-03-31	7
2002-06-30	0
2002-09-30	0
2002-12-31	0
2003-03-31	5
2003-06-30	10
2003-09-30	5
2003-12-31	9
2004-03-31	64
2004-06-30	181
2004-09-30	9
2004-12-31	52
2005-03-31	2
2005-06-30	73
2005-09-30	62
2005-12-31	64
2006-03-31	64
2006-06-30	78
2006-09-30	69
2006-12-31	63
2007-03-31	65
2007-06-30	42
2007-09-30	61
2007-12-31	131
2008-03-31	76
2008-06-30	163
2008-09-30	278
2008-12-31	522
2009-03-31	533
2009-06-30	352
2009-09-30	424
2009-12-31	342
2010-03-31	331
2010-06-30	402
2010-09-30	416
2010-12-31	354
2011-03-31	285
2011-06-30	320
2011-09-30	365
2011-12-31	323
2012-03-31	307
2012-06-30	295
2012-09-30	163
2012-12-31	142
2013-03-31	146
2013-06-30	111
2013-09-30	115
2013-12-31	96
2014-03-31	92
2014-06-30	85
2014-09-30	71
2014-12-31	66
2015-03-31	58
2015-06-30	49
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