73% (1994)

79% (2000)

81% (2000)

69% (2001)

64% (1996)

69% (1996)

79% (1995)

64% (2002)

82% (2002)

71% (1995)

80% (1997)

71% (2002)

67% (2004)

68% (1996)

82% (2003)

66% (1999)

71% (1995)

81% (2002)

70% (1999)

64% (1995)