61% (1970)

68% (2010)

62% (2012)

62% (2020)

58% (2011)

73% (1958)

56% (1971)

61% (1966)

53% (2014)

52% (2014)

60% (1979)

64% (1970)

57% (1973)

61% (1970)

55% (1976)

68% (1959)

57% (1952)

56% (1965)

60% (1972)

58% (1972)