1967

5.2

1980

1.0

1966

0.0

1979

5.7

1962

6.5

1965

7.0

1980

1.0

1966

6.5

1967

5.0

1977

4.1

1971

6.4

1965

6.4

1989

4.2

1978

4.3

1968

4.8

1976

5.1

1977

4.0

1984

2.0

1974

6.4

1964

5.8