1961

6.0

1975

3.7

1989

1.0

1967

4.1

1988

3.4

1989

3.0

1979

6.8

1981

5.5

1980

0.0

1955

6.6

1959

5.7

1966

2.7

1959

6.0

1965

7.1

1986

0.0

1986

7.1

1985

6.8

1977

1.0

1988

7.4

1987

4.9

1971

7.1

1976

5.9

1989

2.0

1958

6.2

1968

2.0

1981

5.3

1984

7.0