65% (2018)

71% (2015)

56% (2017)

76% (1951)

72% (1961)

64% (1993)

76% (1966)

64% (2013)

76% (1990)

72% (2010)

70% (2006)

63% (2018)

58% (2013)

67% (2000)

72% (2013)

71% (1969)

72% (2005)

70% (2004)

71% (1964)

64% (2012)