Quarter	US dollars
1986-09-30	259
1986-12-31	274
1987-03-31	248
1987-06-30	248
1987-09-30	189
1987-12-31	208
1988-03-31	191
1988-06-30	177
1988-09-30	177
1988-12-31	193
1989-03-31	201
1989-06-30	178
1989-09-30	171
1989-12-31	195
1990-03-31	188
1990-06-30	189
1990-09-30	202
1990-12-31	205
1991-03-31	191
1991-06-30	179
1991-09-30	204
1991-12-31	209
1992-03-31	196
1992-06-30	216
1992-09-30	241
1992-12-31	197
1993-03-31	207
1993-06-30	173
1993-09-30	181
1993-12-31	125
1994-03-31	115
1994-06-30	110
1994-09-30	109
1994-12-31	108
1995-03-31	107
1995-06-30	105
1995-09-30	114
1995-12-31	107
1996-03-31	123
1996-06-30	117
1996-09-30	117
1996-12-31	103
1997-03-31	100
1997-06-30	97
1997-09-30	95
1997-12-31	89
1998-03-31	88
1998-06-30	96
1998-09-30	96
1998-12-31	89
1999-03-31	84
1999-06-30	96
1999-09-30	131
1999-12-31	89
2000-03-31	74
2000-06-30	74
2000-09-30	72
2000-12-31	76
2001-03-31	76
2001-06-30	73
2001-09-30	51
2001-12-31	54
2002-03-31	52
2002-06-30	48
2002-09-30	55
2002-12-31	55
2003-03-31	61
2003-06-30	60
2003-09-30	22
2003-12-31	25
2004-03-31	32
2004-06-30	36
2004-09-30	38
2004-12-31	41
2005-03-31	43
2005-06-30	35
2005-09-30	46
2005-12-31	44
2006-03-31	43
2006-06-30	53
2006-09-30	55
2006-12-31	58
2007-03-31	70
2007-06-30	73
2007-09-30	108
2007-12-31	112
2008-03-31	87
2008-06-30	63
2008-09-30	92
2008-12-31	76
2009-03-31	58
2009-06-30	60
2009-09-30	85
2009-12-31	117
2010-03-31	72
2010-06-30	111
2010-09-30	111
2010-12-31	117
2011-03-31	83
2011-06-30	91
2011-09-30	132
2011-12-31	85
2012-03-31	83
2012-06-30	72
2012-09-30	104
2012-12-31	89
2013-03-31	60
2013-06-30	59
2013-09-30	86
2013-12-31	96
2014-03-31	65
2014-06-30	110
2014-09-30	135
2014-12-31	47
2015-03-31	36
2015-06-30	55
2015-09-30	60
2015-12-31	47
2016-03-31	35
2016-06-30	20
2016-09-30	38
2016-12-31	36
2017-03-31	57
2017-06-30	69
2017-09-30	47
2017-12-31	56
2018-03-31	104
2018-06-30	80
2018-09-30	90
2018-12-31	97
2019-03-31	39
2019-06-30	32
2019-09-30	39
2019-12-31	40
2020-03-31	75
2020-06-30	74
2020-09-30	40
2020-12-31	71
2021-03-31	66
2021-06-30	26
2021-09-30	28
2021-12-31	34
2022-03-31	31
2022-06-30	30
2022-09-30	63
2022-12-31	57
2023-03-31	19
2023-06-30	17
2023-09-30	14