79% (1972)

70% (1975)

79% (1955)

67% (1974)

75% (1978)

74% (1976)

50% (1947)

61% (1965)

50% (1956)

50% (1991)

67% (1950)

57% (1973)

53% (1949)

50% (1955)

27% (2007)

56% (1960)

52% (1953)

52% (1968)

53% (1955)

55% (1961)