51% (2005)

54% (2015)

57% (2013)

48% (2010)

55% (2009)

49% (2010)

55% (2009)

59% (2006)

49% (2013)

61% (2005)

56% (2013)

59% (2008)

56% (2006)

55% (2006)

56% (2005)

54% (2009)

50% (2006)

65% (2005)

52% (2014)

55% (2005)