70% (1968)

64% (2007)

70% (1957)

75% (1970)

55% (2016)

71% (1966)

63% (1966)

56% (1976)

60% (1979)

62% (1971)

62% (1965)

65% (1980)

70% (1937)

54% (1991)

72% (1969)

64% (1960)

57% (1968)

66% (1954)

49% (1999)

65% (1947)