1958

6.7

2001

6.7

2003

7.5

1968

7.3

1974

6.0

1979

6.9

1964

0.0

1984

7.8

1959

7.5

1992

7.1

1959

7.0

1985

7.5

1967

7.7

1950

7.0

1972

7.7

1985

7.9

1980

9.2

1977

8.1

1995

9.0

1960

0.0