1991

0.0

1979

8.0

1963

7.9

2005

7.5

2001

4.0

1960

0.0

1980

5.0

1999

6.1

2002

0.0

1983

7.1

1961

7.7

1968

5.5

1968

9.5

1969

8.0

1975

8.5

1962

7.3