1989

6.8

1957

6.2

1964

7.9

1959

5.0

1982

6.9

1994

8.7

1966

5.5

1982

7.6

1987

4.0

1955

6.6

1974

4.5

1965

7.5

1993

5.0

1975

6.0

1976

0.0

1999

7.2

1957

6.8

1960

6.5

1950

0.0

1954

5.3

1969

7.0

1964

7.3

1964

6.5

1952

0.0

1982

2.0

1956

4.0

1956

4.8

1974

5.1

1962

5.2

1962

7.4

1959

8.4

1958

5.9

1961

6.0

1975

7.0