1993

7.3

1964

7.0

2011

7.1

1932

6.6

1992

6.9

2000

4.9

1994

6.7

1982

5.9

1997

6.0

2009

7.2

1983

7.3

2008

6.8

1937

7.5

2020

6.7

1962

6.9

1970

6.7

2008

7.2

2019

6.3

2005

8.6

1959

6.5