2001

6.8

1972

4.7

1966

6.7

1953

6.8

1962

7.9

1955

6.0

1987

6.8

1997

7.0

1971

2.7

1966

7.3

1956

6.1

2019

5.8

1990

6.3

1977

6.4

1965

5.6

2008

5.3

1942

5.2

1995

7.8

1976

6.6

1977

4.9