1966

0.0

2000

6.5

1972

6.9

1989

7.2

1996

7.3

1932

4.3

1931

0.0

1978

6.6

1974

0.0

1993

6.9

1990

7.3

1980

6.3

1987

6.4

2008

7.0

1940

5.5

1961

5.6

1966

0.0

1921

0.0

1996

7.0

1965

0.0