78% (1991)

80% (1984)

74% (1996)

56% (1992)

68% (2001)

71% (1996)

100% (1994)

78% (1996)

77% (2004)

71% (1987)

63% (1996)

90% (1989)

50% (1993)

75% (1989)

80% (2011)