62% (2003)

62% (2001)

60% (2004)

59% (2006)

73% (2001)

50% (2006)

71% (2004)

66% (2002)

60% (2003)

65% (2004)

66% (1998)

75% (2003)

65% (2003)

60% (2001)

62% (2006)

54% (2008)

64% (2001)

58% (2004)

66% (2002)

63% (2002)