1940

3.5

1968

6.0

1981

6.5

1999

6.7

2001

6.6

2002

6.1

1937

4.4

1936

4.4

1972

4.4

1949

5.1

1946

7.4

1951

5.8

1950

4.8

1958

4.1

1979

5.0

1960

6.5

1934

5.0

1963

6.7

1977

0.0

1948

6.0