63% (2001)

57% (1933)

50% (1970)

63% (1980)

63% (1966)

65% (1960)

61% (1958)

57% (1994)

52% (1970)

54% (1993)

58% (2014)

55% (2016)

61% (1979)

64% (1972)

42% (1936)

66% (1975)

50% (1944)

70% (1957)

42% (1971)

71% (1937)