62% (2012)

60% (1970)

68% (2010)

61% (2020)

58% (2011)

52% (2014)

53% (2014)

73% (1958)

56% (1971)

56% (1965)

60% (1979)

68% (1957)

61% (1966)

61% (1970)

55% (1976)

59% (1966)

67% (1971)

64% (1970)

67% (1968)

56% (1973)