1982

7.8

2006

9.8

1947

7.1

1962

7.0

1943

8.0

1949

8.0

1983

6.5

1944

8.1

1952

6.3

1968

7.6

1965

7.6

1988

7.6

1990

6.1

1977

6.8

1985

6.2

1991

7.3

2006

6.3

1963

6.5

1961

7.4

1953

5.4