1999

7.6

1979

6.1

1952

7.7

1991

7.5

1994

8.1

2013

6.6

1974

7.0

1956

7.5

1990

6.7

2004

6.2

1966

7.2

2006

5.7

1999

7.5

2017

6.8

1950

6.8

2020

7.0

1998

6.5

1966

6.8

1953

7.3

1993

6.6