51% (2011)

61% (2001)

63% (2004)

63% (2001)

57% (2009)

58% (2011)

61% (2001)

61% (2015)

44% (2009)

68% (2007)

60% (2003)

63% (2007)

67% (2008)

68% (2015)

67% (2008)

62% (2014)

70% (2005)

40% (2008)

58% (2005)

65% (2007)