67% (2018)

57% (1969)

48% (1975)

67% (1969)

72% (2005)

75% (1962)

61% (1987)

51% (1975)

70% (1976)

53% (2004)

80% (1977)

65% (1971)

76% (1957)

77% (1982)

61% (2013)

70% (1959)

69% (1979)

40% (1999)

78% (1984)

51% (1975)