1988

7.8

1989

8.1

1994

7.3

1969

8.3

1978

4.8

1955

5.3

1963

7.9

1963

7.5

1965

0.0

1985

4.1

1970

6.3

1973

8.5

1972

7.1

1980

6.9

1971

6.0

1979

6.8

2001

8.4

1997

5.7

1967

0.0

1978

7.4

1975

7.1

1961

7.7

1967

7.5

1971

6.8

1989

5.8

1977

7.4

1962

7.3

1975

7.7

1966

5.0

1984

0.0

1984

7.0

1970

7.6

1972

5.8