72% (2003)

67% (2014)

73% (2017)

61% (2003)

59% (2017)

55% (2005)

58% (2005)

58% (2014)

57% (2018)

55% (2008)

56% (2015)

65% (2018)

61% (2009)

74% (2006)

56% (2011)

62% (2010)

62% (2003)

79% (2016)

56% (1963)

63% (2020)