64% (1995)

58% (1991)

56% (2001)

0% (1988)

0% (2004)

85% (1986)

74% (1992)

79% (2000)

58% (1997)

60% (2000)

55% (1994)

65% (1986)

10% (1993)

56% (1996)

45% (1994)

0% (1994)

50% (1994)

70% (1986)

72% (2000)

58% (1983)