1975

3.1

1968

5.5

1982

6.7

1994

5.8

1994

4.6

1930

7.3

1966

7.7

1983

6.0

1963

7.6

1984

6.5

1991

5.0

1960

6.2

1992

5.0

1999

0.0

1979

4.9

1993

4.1

1915

5.9

1974

4.7

1991

5.5

1971

6.3