1954

6.7

1951

6.7

1952

6.7

1992

6.3

2007

6.8

1942

7.0

1947

7.2

2005

7.0

1942

6.8

1946

7.0

1945

7.2

1941

7.4

1945

7.0

1944

6.7

1945

6.9

1942

7.2

1956

6.5

1958

6.6

1951

6.3

1942

7.5