Quarter	US dollars
1999-03-31	4
1999-06-30	18
1999-09-30	47
1999-12-31	52
2000-03-31	69
2000-06-30	82
2000-09-30	87
2000-12-31	99
2001-03-31	106
2001-06-30	107
2001-09-30	103
2001-12-31	120
2002-03-31	122
2002-06-30	124
2002-09-30	125
2002-12-31	120
2003-03-31	122
2003-06-30	125
2003-09-30	114
2003-12-31	125
2004-03-31	134
2004-06-30	120
2004-09-30	119
2004-12-31	104
2005-03-31	103
2005-06-30	114
2005-09-30	123
2005-12-31	128
2006-03-31	117
2006-06-30	127
2006-09-30	104
2006-12-31	222
2007-03-31	236
2007-06-30	239
2007-09-30	94
2007-12-31	75
2008-03-31	48
2008-06-30	87
2008-09-30	75
2008-12-31	112
2009-03-31	60
2009-06-30	72
2009-09-30	127
2009-12-31	266
2010-03-31	192
2010-06-30	112
2010-09-30	106
2010-12-31	92
2011-03-31	101
2011-06-30	92
2011-09-30	55
2011-12-31	83
2012-03-31	23
2012-06-30	94
2012-09-30	68
2012-12-31	89
2013-03-31	87
2013-06-30	69
2013-09-30	49
2013-12-31	5
2014-03-31	3
2014-06-30	115
2014-09-30	33
2014-12-31	47
2015-03-31	36
2015-06-30	44
2015-09-30	32
2015-12-31	26
2016-03-31	11
2016-06-30	1
2016-09-30	1
2016-12-31	3
2017-03-31	2
2017-06-30	3
2017-09-30	3
2017-12-31	3
2018-03-31	1
2018-06-30	3
2018-09-30	2
2018-12-31	2
2019-03-31	2
2019-06-30	2
2019-09-30	2
2019-12-31	1
2020-03-31	2
2020-06-30	2
2020-09-30	2
2020-12-31	1
2021-03-31	3
2021-06-30	2
2021-09-30	2
2021-12-31	1
2022-03-31	0
2022-06-30	1
2022-09-30	2
2022-12-31	5
2023-03-31	49
2023-06-30	50
2023-09-30	42