63% (1991)

58% (1995)

54% (1995)

60% (1989)

57% (1992)

58% (1997)

55% (1992)

80% (1991)

30% (1992)

59% (1999)

60% (1996)

60% (1990)

39% (1994)

77% (1992)

30% (1991)

0% (1992)

43% (2002)

40% (2001)

40% (1988)

33% (1992)