59% (2002)

81% (1984)

56% (1962)

57% (1988)

0% (1987)

65% (1993)

74% (1993)

80% (1990)

59% (2002)

74% (2004)

79% (1981)

78% (1998)

64% (1990)

69% (1992)

65% (2003)

62% (1995)

80% (1997)

70% (2000)

61% (2005)

78% (1987)