1996

5.0

1971

6.2

1990

6.5

1989

5.4

1977

5.0

1994

4.0

1982

6.8

1966

6.4

1981

4.1

1988

4.9

1985

4.4

1986

7.1

1989

6.4

1994

6.0

1993

4.8

1994

5.5

1982

3.2

1991

6.1

1980

5.6

1972

0.0

1972

6.8

1971

6.4

1994

6.1