52% (1987)

50% (1992)

70% (2025)

74% (2024)

73% (1973)

81% (1960)

85% (1988)

82% (1963)

65% (1962)

64% (2015)

49% (1980)

55% (1976)

65% (1975)

52% (1985)

52% (1983)

54% (2007)

48% (1980)

53% (1977)

75% (1970)

67% (1982)