62% (2021)

56% (2013)

70% (1954)

66% (2002)

61% (1970)

57% (1980)

70% (1989)

61% (1969)

68% (1957)

56% (2014)

63% (1985)

55% (1993)

64% (1967)

66% (2004)

36% (1977)

69% (2007)

61% (2018)

67% (1981)

74% (1981)

36% (1960)