1970

4.2

1961

4.0

1993

4.5

1967

2.3

1981

6.0

1968

2.4

1981

5.5

1974

5.8

1973

5.0

1972

3.9

1990

5.3

1969

3.0

1965

3.0

1969

3.3

1977

3.9

1990

4.8

1988

7.1

1991

5.5

1987

4.6

1964

4.0

1978

0.0

1966

5.2

1994

3.9

1965

0.0

1964

4.8

1977

6.8

1990

5.4

1993

0.0

1964

4.0