49% (1999)

53% (1992)

55% (2000)

70% (1995)

57% (1998)

66% (1986)

34% (1994)

43% (1998)

40% (1998)

41% (2000)

52% (1995)

30% (1999)

42% (1988)

55% (1994)

57% (2000)

60% (1994)

52% (1999)

52% (1990)

52% (1997)

50% (1996)