Quarter	US dollars
1986-09-30	207
1986-12-31	143
1987-03-31	130
1987-06-30	193
1987-09-30	193
1987-12-31	193
1988-03-31	155
1988-06-30	167
1988-09-30	125
1988-12-31	88
1989-03-31	108
1989-06-30	117
1989-09-30	54
1989-12-31	61
1990-03-31	62
1990-06-30	47
1990-09-30	52
1990-12-31	125
1991-03-31	145
1991-06-30	38
1991-09-30	33
1991-12-31	26
1992-03-31	43
1992-06-30	53
1992-09-30	52
1992-12-31	62
1993-03-31	49
1993-06-30	43
1993-09-30	39
1993-12-31	46
1994-03-31	49
1994-06-30	50
1994-09-30	48
1994-12-31	43
1995-03-31	20
1995-06-30	20
1995-09-30	18
1995-12-31	18
1996-03-31	19
1996-06-30	19
1996-09-30	20
1996-12-31	23
1997-03-31	11
1997-06-30	59
1997-09-30	15
1997-12-31	44
1998-03-31	22
1998-06-30	23
1998-09-30	44
1998-12-31	58
1999-03-31	52
1999-06-30	19
1999-09-30	17
1999-12-31	21
2000-03-31	34
2000-06-30	67
2000-09-30	103
2000-12-31	99
2001-03-31	122
2001-06-30	118
2001-09-30	109
2001-12-31	129
2002-03-31	107
2002-06-30	81
2002-09-30	74
2002-12-31	47
2003-03-31	34
2003-06-30	43
2003-09-30	30
2003-12-31	26
2004-03-31	23
2004-06-30	35
2004-09-30	26
2004-12-31	23
2005-03-31	14
2005-06-30	30
2005-09-30	22
2005-12-31	23
2006-03-31	24
2006-06-30	24
2006-09-30	12
2006-12-31	20
2007-03-31	34
2007-06-30	29
2007-09-30	23
2007-12-31	32
2008-03-31	50
2008-06-30	33
2008-09-30	40
2008-12-31	51
2009-03-31	46
2009-06-30	85
2009-09-30	77
2009-12-31	56
2010-03-31	53
2010-06-30	53
2010-09-30	48
2010-12-31	78
2011-03-31	68
2011-06-30	65
2011-09-30	72
2011-12-31	47
2012-03-31	45
2012-06-30	49
2012-09-30	27
2012-12-31	28
2013-03-31	42
2013-06-30	46
2013-09-30	94
2013-12-31	49
2014-03-31	51
2014-06-30	41
2014-09-30	41
2014-12-31	51
2015-03-31	47
2015-06-30	45
2015-09-30	48
2015-12-31	52
2016-03-31	33
2016-06-30	43
2016-09-30	17
2016-12-31	17
2017-03-31	38
2017-06-30	22
2017-09-30	36
2017-12-31	67
2018-03-31	63
2018-06-30	61
2018-09-30	4
2018-12-31	13
2019-03-31	23
2019-06-30	84
2019-09-30	82
2019-12-31	58
2020-03-31	58
2020-06-30	78
2020-09-30	87
2020-12-31	71
2021-03-31	94
2021-06-30	100
2021-09-30	106
2021-12-31	103
2022-03-31	77
2022-06-30	63
2022-09-30	50
2022-12-31	36
2023-03-31	73
2023-06-30	139
2023-09-30	132