20% (1964)

23% (1961)

37% (1949)

33% (1955)

45% (1940)

0% (1946)

22% (1958)

0% (1968)

0% (1940)

10% (1940)

27% (1963)

0% (1952)

23% (1953)

22% (1954)

0% (1941)

50% (1945)

30% (1947)

33% (1952)

30% (1945)

50% (1940)