75% (1997)

79% (1999)

78% (1994)

70% (1999)

72% (1997)

70% (2003)

68% (1998)

68% (2001)

64% (2002)

65% (2004)

60% (2000)

76% (2000)

72% (1996)

58% (2006)

0% (1995)

49% (1998)

58% (1996)

48% (2006)

67% (2000)

53% (2005)