Month	Percent
1987-07-31	892.8
1987-08-31	542.3
1987-09-30	475.2
1987-10-31	335.8
1987-11-30	231.8
1987-12-31	251.7
1988-01-31	270
1988-02-29	211.8
1988-03-31	185
1988-04-30	135.1
1988-05-31	152.9
1988-06-30	93.2
1988-07-31	112.7
1988-08-31	116.1
1988-09-30	104
1988-10-31	103.4
1988-11-30	120
1988-12-31	84.7
1989-01-31	77.8
1989-02-28	49.2
1989-03-31	56.1
1989-04-30	54.7
1989-05-31	29.3
1989-06-30	22.5
1989-07-31	10.1
1989-08-31	6.8
1989-09-30	13.7
1989-10-31	-2.3
1989-11-30	1.9
1989-12-31	5.9
1990-01-31	12.1
1990-02-28	23
1990-03-31	1.4
1990-04-30	8.8
1990-05-31	18.9
1990-06-30	35.8
1990-07-31	40
1990-08-31	36.9
1990-09-30	29.5
1990-10-31	32.3
1990-11-30	9.8
1990-12-31	9.5
1991-01-31	-0.1
1991-02-28	4.4
1991-03-31	16.6
1991-04-30	0.4
1991-05-31	-0.1
1991-06-30	-6.5
1991-07-31	-2.4
1991-08-31	-3.7
1991-09-30	-7
1991-10-31	-9
1991-11-30	1.1
1991-12-31	0.5
1992-01-31	3.6
1992-02-29	-2.3
1992-03-31	-8.5
1992-04-30	-1.3
1992-05-31	-7
1992-06-30	-1.4
1992-07-31	-16.4
1992-08-31	-13.1
1992-09-30	-18.8
1992-10-31	-20.3
1992-11-30	-8
1992-12-31	-3.4
1993-01-31	-4.3
1993-02-28	-13
1993-03-31	6.4
1993-04-30	5.7
1993-05-31	19.7
1993-06-30	11.9
1993-07-31	33.2
1993-08-31	28.5
1993-09-30	24
1993-10-31	52.2
1993-11-30	31.4
1993-12-31	39.8
1994-01-31	32.6
1994-02-28	41.7
1994-03-31	28
1994-04-30	16.7
1994-05-31	5.4
1994-06-30	4.1
1994-07-31	-9
1994-08-31	-4.7
1994-09-30	0.2
1994-10-31	-10.3
1994-11-30	-2.1
1994-12-31	3.7
1995-01-31	3.3
1995-02-28	-1.5
1995-03-31	-8.9
1995-04-30	-6.8
1995-05-31	-2.3
1995-06-30	-2.7
1995-07-31	12.1
1995-08-31	9.5
1995-09-30	22.9
1995-10-31	19.2
1995-11-30	13.1
1995-12-31	14
1996-01-31	15.2
1996-02-29	27
1996-03-31	37.9
1996-04-30	33.3
1996-05-31	29.8
1996-06-30	21.8
1996-07-31	18.3
1996-08-31	16.4
1996-09-30	8.5
1996-10-31	6.4
1996-11-30	11.7
1996-12-31	15.3
1997-01-31	15.6
1997-02-28	6.2
1997-03-31	1.9
1997-04-30	-1.4
1997-05-31	-6.3
1997-06-30	-0.3
1997-07-31	11.2
1997-08-31	16.9
1997-09-30	10.6
1997-10-31	17.9
1997-11-30	9.8
1997-12-31	32.5
1998-01-31	14.1
1998-02-28	12.6
1998-03-31	17.2
1998-04-30	46.2
1998-05-31	58.1
1998-06-30	51.8
1998-07-31	19.9
1998-08-31	19.3
1998-09-30	30.9
1998-10-31	25.2
1998-11-30	23.7
1998-12-31	1
1999-01-31	3.5
1999-02-28	12.3
1999-03-31	14.7
1999-04-30	18.4
1999-05-31	25.5
1999-06-30	17.2
1999-07-31	31.7
1999-08-31	20.3
1999-09-30	27.1
1999-10-31	25.3
1999-11-30	35.5
1999-12-31	48.6
2000-01-31	34.7
2000-02-29	36.4
2000-03-31	46.8
2000-04-30	27.7
2000-05-31	19.5
2000-06-30	32.2
2000-07-31	22.6
2000-08-31	34
2000-09-30	32.8
2000-10-31	38
2000-11-30	29.2
2000-12-31	31.6
2001-01-31	57
2001-02-28	39.7
2001-03-31	31.7
2001-04-30	23.8
2001-05-31	22.3
2001-06-30	44.5
2001-07-31	40.4
2001-08-31	40.3
2001-09-30	32.1
2001-10-31	34.1
2001-11-30	44
2001-12-31	18.3
2002-01-31	20.6
2002-02-28	23.1
2002-03-31	19.3
2002-04-30	29.7
2002-05-31	39.8
2002-06-30	24
2002-07-31	32.8
2002-08-31	24
2002-09-30	30.5
2002-10-31	33.1
2002-11-30	37
2002-12-31	31.7
2003-01-31	25.6
2003-02-28	32.6
2003-03-31	25.6
2003-04-30	17.9
2003-05-31	8.4
2003-06-30	6.3
2003-07-31	3.6
2003-08-31	6.2
2003-09-30	5.8
2003-10-31	0.9
2003-11-30	-11.1
2003-12-31	2
2004-01-31	-2
2004-02-29	-0.8
2004-03-31	-2.9
2004-04-30	-1.8
2004-05-31	-3.9
2004-06-30	-2.8
2004-07-31	-3.3
2004-08-31	0.7
2004-09-30	0.6
2004-10-31	0.5