51% (1982)

55% (1951)

60% (1952)

50% (1947)

37% (1956)

65% (1946)

63% (1937)

42% (1957)

50% (1970)

30% (1945)

50% (1951)

61% (1927)

20% (1949)

48% (1946)

63% (1938)

60% (1983)

41% (1957)

47% (1952)

60% (1943)

80% (2000)