68% (2010)

62% (2012)

59% (1972)

62% (2020)

53% (2014)

55% (1964)

60% (1984)

64% (1957)

73% (1958)

56% (1971)

58% (2011)

64% (1970)

57% (1973)

73% (1960)

61% (1966)

61% (1970)

62% (1971)

68% (1959)

52% (2014)

64% (1964)