1967

6.0

1969

6.6

1985

5.8

1972

6.3

1967

6.9

1943

5.4

1987

7.0

1963

7.5

1991

5.3

1982

4.5

1905

4.3

1982

6.9

1977

5.5

2016

6.4

1997

7.5