50% (1992)

42% (1994)

46% (1992)

44% (1994)

38% (1994)

38% (1992)

43% (1994)

50% (1994)

40% (1993)

35% (2008)

55% (1995)

45% (1991)

45% (1993)

50% (1994)

38% (1992)

24% (1996)

48% (1992)

58% (1993)

27% (1992)