82% (1989)

75% (1984)

61% (1970)

75% (2005)

72% (2002)

77% (2012)

76% (2012)

63% (1992)

74% (2015)

75% (2011)

64% (1971)

37% (1959)

81% (1971)

78% (2001)

67% (1967)

85% (2017)

76% (1996)

72% (1985)

81% (2018)

70% (2005)