Quarter	Percent
1987-09-30	475.2
1987-12-31	251.7
1988-03-31	185
1988-06-30	93.2
1988-09-30	104
1988-12-31	84.7
1989-03-31	56.1
1989-06-30	22.5
1989-09-30	13.7
1989-12-31	5.9
1990-03-31	1.4
1990-06-30	35.8
1990-09-30	29.5
1990-12-31	9.5
1991-03-31	16.6
1991-06-30	-6.5
1991-09-30	-7
1991-12-31	0.5
1992-03-31	-8.5
1992-06-30	-1.4
1992-09-30	-18.8
1992-12-31	-3.4
1993-03-31	6.4
1993-06-30	11.9
1993-09-30	24
1993-12-31	39.8
1994-03-31	28
1994-06-30	4.1
1994-09-30	0.2
1994-12-31	3.7
1995-03-31	-8.9
1995-06-30	-2.7
1995-09-30	22.9
1995-12-31	14
1996-03-31	37.9
1996-06-30	21.8
1996-09-30	8.5
1996-12-31	15.3
1997-03-31	1.9
1997-06-30	-0.3
1997-09-30	10.6
1997-12-31	32.5
1998-03-31	17.2
1998-06-30	51.8
1998-09-30	30.9
1998-12-31	1
1999-03-31	14.7
1999-06-30	17.2
1999-09-30	27.1
1999-12-31	48.6
2000-03-31	46.8
2000-06-30	32.2
2000-09-30	32.8
2000-12-31	31.6
2001-03-31	31.7
2001-06-30	44.5
2001-09-30	32.1
2001-12-31	18.3
2002-03-31	19.3
2002-06-30	24
2002-09-30	30.5
2002-12-31	31.7
2003-03-31	25.6
2003-06-30	6.3
2003-09-30	5.8
2003-12-31	2
2004-03-31	-2.9
2004-06-30	-2.8
2004-09-30	0.6
2004-12-31	0.6
2005-03-31	0.6
2005-06-30	0.6
2005-09-30	0.6
2005-12-31	0.6
2006-03-31	0.6
2006-06-30	0.6
2006-09-30	0.6
2006-12-31	0.6