62% (2003)

61% (2001)

60% (2004)

50% (2006)

59% (2006)

65% (2003)

74% (2003)

72% (2001)

59% (2003)

66% (1998)

65% (2002)

70% (2004)

64% (2001)

59% (2001)

54% (2008)

62% (2006)

65% (2004)

56% (2004)

64% (2001)

65% (2007)