56% (2016)

59% (1945)

55% (1972)

58% (1988)

59% (2011)

62% (1991)

57% (1954)

71% (1991)

63% (1938)

61% (1972)

68% (1980)

43% (1992)

63% (1985)

70% (1969)

57% (2008)

58% (2015)

52% (2015)

67% (2014)

49% (2006)

65% (1978)