1963

7.9

2009

6.2

1957

7.9

1961

7.9

1970

8.2

1997

6.2

1997

5.6

2003

5.2

1980

7.8

1943

8.0

1975

6.8

1981

6.7

2019

7.6

2001

6.0

1932

7.5

1963

7.2

2012

7.6

1968

6.8

2004

6.9