1967

4.6

1987

4.8

1971

4.9

1963

7.9

1976

7.0

1989

7.2

1962

7.3

1990

6.0

1974

6.7

1967

6.5

1991

5.1

1988

0.0

1985

6.5

1991

6.5

1961

7.7

1972

6.0

1964

5.6

1961

6.8

2020

4.4

2005

0.0

1971

0.0

1971

7.6

1975

7.7