1964

5.4

1959

7.5

1996

6.5

1971

5.4

1951

8.7

1998

6.7

1982

6.0

1973

7.0

1990

7.4

1986

10.0

1973

5.0

1997

8.0

1968

5.9

1975

0.0

1974

0.0

1972

5.0

1959

6.0

1977

5.0

1965

5.5

1966

5.6

1967

6.8

1971

6.1

1973

6.0

1968

6.2

1973

7.8

1956

4.6

1983

5.6

1958

3.0