Quarter	US dollars
1999-09-30	119
1999-12-31	131
2000-03-31	131
2000-06-30	138
2000-09-30	143
2000-12-31	145
2001-03-31	142
2001-06-30	142
2001-09-30	143
2001-12-31	143
2002-03-31	140
2002-06-30	150
2002-09-30	157
2002-12-31	18
2003-03-31	21
2003-06-30	20
2003-09-30	28
2003-12-31	29
2004-03-31	28
2004-06-30	33
2004-09-30	33
2004-12-31	31
2005-03-31	30
2005-06-30	29
2005-09-30	34
2005-12-31	36
2006-03-31	47
2006-06-30	50
2006-09-30	60
2006-12-31	59
2007-03-31	59
2007-06-30	66
2007-09-30	79
2007-12-31	80
2008-03-31	107
2008-06-30	92
2008-09-30	98
2008-12-31	93
2009-03-31	92
2009-06-30	94
2009-09-30	91
2009-12-31	87
2010-03-31	36
2010-06-30	31
2010-09-30	32
2010-12-31	27
2011-03-31	26
2011-06-30	29
2011-09-30	45
2011-12-31	43
2012-03-31	50
2012-06-30	89
2012-09-30	68
2012-12-31	55
2013-03-31	121
2013-06-30	109
2013-09-30	120
2013-12-31	109
2014-03-31	135
2014-06-30	138
2014-09-30	128
2014-12-31	140
2015-03-31	114
2015-06-30	112
2015-09-30	112
2015-12-31	82
2016-03-31	95
2016-06-30	75
2016-09-30	56
2016-12-31	36
2017-03-31	34
2017-06-30	35
2017-09-30	36
2017-12-31	35
2018-03-31	36
2018-06-30	33
2018-09-30	53
2018-12-31	47
2019-03-31	55
2019-06-30	48
2019-09-30	44
2019-12-31	49
2020-03-31	50
2020-06-30	40
2020-09-30	27
2020-12-31	27
2021-03-31	34
2021-06-30	39
2021-09-30	28
2021-12-31	35
2022-03-31	36
2022-06-30	38
2022-09-30	27
2022-12-31	25
2023-03-31	26
2023-06-30	26
2023-09-30	24