1984

7.6

1973

4.4

1972

7.8

1981

5.6

1966

6.7

1967

7.6

1964

7.1

1979

5.7

1973

3.5

1964

2.6

1974

4.3

1977

0.0

1980

5.2

1962

6.4

1986

7.2