48% (1981)

55% (1971)

59% (1972)

80% (1965)

56% (1968)

58% (1935)

66% (1963)

59% (1964)

69% (1973)

60% (1985)

66% (1976)

44% (1960)

65% (1963)

43% (1963)

50% (1963)

60% (1966)

46% (1964)

50% (1963)

52% (1971)

63% (2014)