1966

6.2

1993

6.6

1996

6.5

1983

7.9

1985

6.8

2022

7.3

1980

5.9

1985

7.2

1984

7.1

1971

6.0

1985

6.2

1962

6.9

1954

6.7

2019

6.5

1999

5.9

1972

6.4

2006

6.7

1988

5.8

1995

6.0

2019

6.7