1990

8.5

1971

7.5

1977

6.7

1981

7.4

1963

7.9

1989

6.4

1993

8.6

2002

8.4

1946

8.3

2016

7.9

2018

7.1

1977

6.2

1996

8.0

1994

6.5

1972

7.8

1979

6.7

1995

7.6

1990

5.8

2004

7.2

1953

6.8