1962

6.6

1978

7.7

1971

7.0

2003

6.3

1963

7.9

1977

7.7

1987

0.0

1995

8.1

1980

1.0

1982

6.5

1998

5.4

1993

6.1

1995

6.3

1972

5.5

1961

7.7

1968

6.1

1984

0.0

1965

5.3

1971

6.8

1962

7.0

1995

5.9

1988

0.0