1963

7.2

1959

8.0

1963

6.1

1963

7.7

1965

6.3

1967

6.5

1973

6.0

1953

4.3

1956

5.0

1963

6.2

1952

3.0

1948

6.3

1964

6.2

1952

5.7

1951

7.1

1971

7.0

1970

7.3

1958

3.7

1948

6.1

1950

5.6

1966

6.2

1966

6.8

1969

7.6

1968

0.0

1957

0.0

1953

6.1

1950

5.6

1964

6.8