67% (2003)

67% (2004)

43% (2008)

66% (2005)

49% (2007)

55% (2005)

63% (2005)

60% (2005)

57% (2007)

61% (2007)

61% (2008)

59% (2005)

70% (2007)

64% (2006)

63% (2005)

72% (2005)

64% (2007)

45% (2005)

47% (2007)

78% (2006)