60% (1962)

80% (1990)

59% (2002)

78% (1998)

60% (2002)

64% (1990)

80% (1997)

65% (1993)

67% (1984)

0% (1987)

81% (1984)

0% (1984)

74% (2004)

64% (1995)

55% (1988)

73% (1993)

73% (1999)

60% (1983)

72% (1993)

80% (1981)