1943

7.5

1992

6.7

1938

7.5

1951

7.3

1975

6.6

1973

6.9

1988

6.8

2004

10.0

2000

5.1

1972

7.1

1945

7.4

2009

7.5

1993

6.2

1957

8.1

1949

6.9

1947

6.2

1932

7.4

1989

4.9

1975

7.5

2009

5.0