79% (1955)

56% (1960)

57% (1973)

46% (2012)

75% (1976)

52% (1968)

61% (1965)

67% (1950)

53% (1949)

72% (1975)

56% (1948)

81% (1972)

75% (1978)

50% (1949)

50% (1966)

50% (1947)

72% (1974)

55% (1957)

50% (1955)

53% (1955)