Quarter	US dollars
1999-09-30	3
1999-12-31	18
2000-03-31	5
2000-06-30	6
2000-09-30	6
2000-12-31	6
2001-03-31	10
2001-06-30	4
2001-09-30	4
2001-12-31	17
2002-03-31	1
2002-06-30	0
2002-09-30	0
2002-12-31	3
2003-03-31	3
2003-06-30	0
2003-09-30	5
2003-12-31	2
2004-03-31	6
2004-06-30	34
2004-09-30	25
2004-12-31	2
2005-03-31	11
2005-06-30	38
2005-09-30	140
2005-12-31	5
2006-03-31	94
2006-06-30	74
2006-09-30	80
2006-12-31	37
2007-03-31	120
2007-06-30	118
2007-09-30	124
2007-12-31	32
2008-03-31	16
2008-06-30	24
2008-09-30	4
2008-12-31	4
2009-03-31	4
2009-06-30	5
2009-09-30	6
2009-12-31	6
2010-03-31	6
2010-06-30	7
2010-09-30	11
2010-12-31	6
2011-03-31	11
2011-06-30	13
2011-09-30	11
2011-12-31	11
2012-03-31	8
2012-06-30	8
2012-09-30	5
2012-12-31	6
2013-03-31	0
2013-06-30	6
2013-09-30	3
2013-12-31	5
2014-03-31	7
2014-06-30	9
2014-09-30	10
2014-12-31	3
2015-03-31	3
2015-06-30	2
2015-09-30	2
2015-12-31	1
2016-03-31	16
2016-06-30	1
2016-09-30	3
2016-12-31	6
2017-03-31	29
2017-06-30	42
2017-09-30	12
2017-12-31	69
2018-03-31	118
2018-06-30	69
2018-09-30	63
2018-12-31	3
2019-03-31	66
2019-06-30	73
2019-09-30	6
2019-12-31	3
2020-03-31	10
2020-06-30	7
2020-09-30	52
2020-12-31	4
2021-03-31	51
2021-06-30	51
2021-09-30	7
2021-12-31	7
2022-03-31	18
2022-06-30	12
2022-09-30	7
2022-12-31	18
2023-03-31	6
2023-06-30	16
2023-09-30	28