1971

7.8

1976

7.0

1964

7.9

1990

6.0

1999

6.0

1995

4.6

1974

8.0

1985

0.0

1971

5.2

1965

7.3

1971

6.4

1963

6.8

1990

7.4

1972

7.9

1974

6.2

1997

8.0

1978

4.2

1994

1.7

1956

5.0

1984

7.2

1966

6.1

1967

7.6

1976

5.0

1977

0.0

1970

7.5

1963

5.8

1969

6.0

1976

4.1