1998

6.4

1955

7.3

1940

6.9

1934

5.4

1942

7.0

1916

4.0

1960

7.4

1936

5.8

1941

7.1

2011

6.7

1943

6.2

1943

7.5

1952

7.3

1977

6.7

1948

3.0

1942

3.5

2005

6.0

1961

0.0