90% (2005)

75% (1999)

68% (1995)

68% (2004)

75% (2001)

68% (2002)

70% (2004)

64% (1998)

66% (2001)

82% (2000)

75% (1996)

58% (2004)

75% (2003)

55% (2005)

50% (1999)

74% (2005)

78% (2003)

87% (2003)

66% (1998)

61% (1998)