2001

0.0

1965

5.7

1959

5.2

1961

6.0

1952

6.7

1965

7.9

1966

6.3

1975

5.7

1955

6.7

1967

6.7

1956

4.5

1971

4.7

1985

7.0

2004

7.4

1971

5.0

2001

0.0

1960

6.1

1958

6.9

1968

5.7

1957

8.0

1966

6.4