55% (2009)

57% (2012)

58% (2011)

63% (2012)

57% (2006)

51% (2006)

53% (2013)

61% (2007)

56% (2005)

57% (2012)

50% (2013)

40% (2011)

53% (2012)

51% (2012)

49% (2010)

61% (2015)

44% (2011)

57% (2011)

50% (2013)

48% (2011)