66% (2018)

57% (1997)

56% (1951)

59% (2009)

63% (2016)

61% (2005)

57% (2011)

73% (2008)

65% (2012)

62% (2005)

61% (2011)

62% (2018)

36% (1993)

70% (1974)

75% (2019)

66% (1972)

78% (2015)

59% (2004)

64% (2005)

70% (1972)