Quarter	US dollars
1999-09-30	0
1999-12-31	0
2000-03-31	35
2000-06-30	36
2000-09-30	4
2000-12-31	37
2001-03-31	70
2001-06-30	68
2001-09-30	18
2001-12-31	22
2002-03-31	14
2002-06-30	11
2002-09-30	6
2002-12-31	19
2003-03-31	35
2003-06-30	13
2003-09-30	15
2003-12-31	13
2004-03-31	4
2004-06-30	5
2004-09-30	11
2004-12-31	10
2005-03-31	11
2005-06-30	9
2005-09-30	11
2005-12-31	21
2006-03-31	19
2006-06-30	17
2006-09-30	21
2006-12-31	29
2007-03-31	24
2007-06-30	26
2007-09-30	45
2007-12-31	46
2008-03-31	28
2008-06-30	28
2008-09-30	98
2008-12-31	86
2009-03-31	90
2009-06-30	58
2009-09-30	88
2009-12-31	76
2010-03-31	70
2010-06-30	33
2010-09-30	33
2010-12-31	45
2011-03-31	34
2011-06-30	42
2011-09-30	36
2011-12-31	110
2012-03-31	34
2012-06-30	42
2012-09-30	39
2012-12-31	36
2013-03-31	33
2013-06-30	30
2013-09-30	28
2013-12-31	25
2014-03-31	22
2014-06-30	24
2014-09-30	21
2014-12-31	19
2015-03-31	25
2015-06-30	28
2015-09-30	21
2015-12-31	16
2016-03-31	17
2016-06-30	13
2016-09-30	16
2016-12-31	4
2017-03-31	6
2017-06-30	16
2017-09-30	13
2017-12-31	14
2018-03-31	14
2018-06-30	21
2018-09-30	13
2018-12-31	17
2019-03-31	3
2019-06-30	1
2019-09-30	2
2019-12-31	3
2020-03-31	4
2020-06-30	4
2020-09-30	3
2020-12-31	5
2021-03-31	7
2021-06-30	1
2021-09-30	1
2021-12-31	5
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