62% (2003)

60% (2004)

62% (2001)

71% (2004)

59% (2006)

50% (2006)

72% (2001)

65% (2004)

74% (2003)

60% (2001)

66% (2002)

60% (2003)

62% (2006)

66% (1998)

65% (2003)

54% (2008)

65% (2007)

62% (2002)

64% (2001)

66% (2002)