72% (1992)

65% (1980)

76% (1958)

57% (2018)

67% (1991)

62% (1990)

65% (1995)

63% (1999)

70% (1973)

70% (1979)

75% (1968)

73% (1960)

74% (1970)

70% (1996)

54% (2004)

72% (2015)

74% (1991)

55% (1995)

62% (1964)

75% (1939)