1992

7.5

1976

7.6

1995

7.3

1962

8.0

1943

7.7

1975

7.5

2018

7.9

1994

7.0

1993

6.3

2006

8.2

1962

7.9

2006

6.9

1982

7.6

2000

7.5

2001

7.6

2001

7.4

1951

6.5

2014

5.3

1989

7.2

1999

7.7