1999

6.5

1997

8.4

1996

6.4

1991

7.3

2002

7.2

1976

7.2

1932

7.8

1951

7.7

1998

6.9

2017

5.9

1958

8.2

1971

6.8

2001

6.2

1996

7.3

1940

7.9

2020

6.6

2014

5.5

2020

3.0

1995

6.4

1991

7.3