76% (2007)

63% (2002)

73% (2014)

80% (1990)

76% (2015)

67% (1984)

65% (1973)

79% (1987)

75% (2007)

53% (1978)

67% (2021)

79% (2013)

75% (1977)

74% (2016)

78% (1975)

76% (1992)

71% (1975)

61% (1955)

64% (1983)

50% (1964)