41% (2004)

49% (1991)

34% (1995)

46% (1998)

35% (1988)

49% (1997)

54% (1993)

35% (1992)

37% (1995)

42% (1995)

30% (1993)

50% (1995)

52% (2002)

40% (1995)

30% (1995)

46% (1997)

20% (1999)

44% (1989)

37% (1995)

32% (1996)