1995

6.4

1981

6.5

1998

8.2

1989

6.9

2002

0.0

1989

5.3

1994

7.8

1985

6.2

1993

5.1

1980

7.3

2004

7.0

1984

4.5

1995

7.5

1979

2.0

1996

7.8

1989

3.9

1991

5.7

1987

4.8

1995

6.6

2001

0.0

2002

5.5

1985

7.7

1981

5.2

1997

10.0