53% (1995)

51% (1997)

41% (1995)

30% (1996)

34% (1994)

39% (1996)

35% (1996)

48% (1995)

57% (1999)

49% (1996)

32% (1992)

53% (1995)

50% (1995)

43% (2000)

33% (1994)

39% (1995)

46% (1993)

32% (1994)

20% (1996)

50% (1994)