78% (1990)

85% (1999)

64% (1984)

47% (1985)

85% (1995)

64% (1986)

78% (1980)

74% (1981)

85% (2009)

70% (1976)

75% (1979)

65% (1988)

80% (2002)

73% (1978)

71% (1974)

62% (1976)

73% (1975)

77% (1976)

70% (2023)

82% (1987)