75% (2001)

63% (2004)

63% (2005)

68% (2001)

71% (2006)

55% (2006)

56% (2003)

49% (2003)

62% (2008)

82% (2005)

53% (2005)

64% (2004)

55% (2002)

44% (2002)

61% (2003)

76% (2005)

49% (2004)

66% (2007)

67% (2011)

65% (2006)