80% (1965)

69% (1973)

65% (1970)

56% (1968)

65% (1976)

80% (1934)

54% (1971)

60% (1964)

61% (1980)

50% (1997)

55% (1968)

63% (2014)

46% (1964)

57% (1966)

60% (1985)

54% (1980)

40% (1960)

70% (1959)

64% (1965)

68% (1973)