48% (1992)

27% (1991)

45% (1996)

45% (1993)

38% (1993)

25% (2002)

51% (1998)

36% (2002)

60% (2002)

62% (1999)

37% (1997)

31% (1992)

30% (1997)

41% (2001)

0% (1998)

15% (1991)

52% (1996)

53% (2000)