77% (1986)

73% (1966)

47% (1993)

65% (1996)

57% (1967)

73% (1953)

64% (1966)

65% (1966)

53% (1992)

74% (1966)

71% (1955)

56% (1988)

61% (1968)

66% (1951)

68% (1989)

72% (1989)

61% (1984)

63% (1981)

53% (2004)

57% (1968)