43% (1992)

58% (1991)

46% (1989)

45% (1996)

63% (1994)

50% (1993)

10% (1990)

54% (1992)

38% (1993)

48% (1988)

48% (1999)

37% (1997)

0% (1992)

0% (1990)

50% (1991)

58% (1990)

52% (1996)

0% (1999)

36% (1992)

58% (1989)