79% (1955)

74% (1976)

52% (1968)

56% (1960)

70% (1975)

79% (1972)

75% (1978)

53% (1949)

50% (1949)

67% (1974)

50% (1947)

52% (2012)

56% (1948)

50% (1957)

61% (1965)

57% (1973)

27% (2007)

60% (1953)

67% (1950)

50% (1955)