1977

5.9

1970

6.4

1918

6.8

1989

5.1

1929

7.5

1971

7.2

1968

6.7

1961

7.8

1969

7.1

1942

6.9

1990

6.1

1966

6.8

1966

8.0

1951

7.6

1999

5.3

1964

7.0

1946

7.6

1979

6.8

1971

7.4

1970

7.0