60% (1956)

58% (1929)

40% (1941)

30% (1947)

25% (1965)

0% (1941)

40% (1950)

60% (1937)

70% (1937)

50% (1939)

40% (1939)

25% (1933)

45% (1980)

37% (1939)

70% (1940)

80% (1928)

0% (1949)

20% (1940)

50% (1956)

30% (1945)