69% (1996)

59% (1993)

77% (1998)

59% (1995)

69% (1998)

75% (1993)

76% (1995)

61% (1997)

52% (1995)

65% (1994)

64% (2002)

54% (1999)

66% (2000)

73% (1999)

40% (2004)

59% (1996)

57% (1997)