1982

7.6

1971

6.3

1965

6.5

2003

6.8

1949

7.2

1998

7.2

1971

6.1

1974

7.0

2004

6.8

1944

6.9

1920

7.5

1948

7.3

1968

6.5

2000

5.1

1966

6.8

1945

7.6

1977

6.6

1997

6.5

1990

6.5

1988

7.6