1974

7.9

1988

7.5

1971

6.8

1954

8.4

1956

7.5

1996

7.7

2017

5.4

1954

6.8

1974

7.1

2021

6.0

2001

6.1

1972

6.7

1984

5.7

2010

6.6

1972

4.5

1975

5.7

1971

6.7

1985

5.3

1967

7.6

1992

6.4