1948

7.0

1981

4.5

2015

6.3

2003

5.8

1979

6.1

1975

5.7

1986

7.1

1936

7.8

1991

6.6

1955

6.1

1971

7.7

1944

5.5

1925

6.5

1930

4.5

1929

4.5

1978

1.0

1954

6.0

1967

5.5

1955

7.0

1973

7.5