51% (1997)

20% (1996)

48% (1996)

46% (1993)

55% (1995)

43% (2000)

48% (1995)

49% (1995)

33% (1994)

53% (1995)

57% (1999)

40% (1996)

39% (1995)

39% (1995)

35% (1994)

42% (1997)

35% (1996)

34% (1994)

50% (1994)

30% (1996)