68% (2010)

58% (2011)

59% (1972)

61% (2012)

61% (2020)

72% (1958)

59% (1974)

68% (1966)

62% (1974)

56% (1973)

51% (2014)

64% (1957)

56% (1968)

61% (1970)

56% (2011)

68% (1957)

67% (1967)

61% (1956)

53% (2014)

67% (1971)