63% (1993)

68% (2002)

65% (1996)

72% (1993)

56% (2001)

36% (1995)

0% (1994)

61% (1991)

0% (1991)

0% (1997)

60% (1989)

50% (1995)

27% (1993)

43% (2003)

70% (1990)

37% (1993)

60% (1987)

0% (1993)

0% (1996)

0% (1996)