74% (1991)

73% (2015)

69% (2013)

46% (1975)

75% (1967)

61% (1980)

76% (2009)

77% (1993)

85% (2004)

68% (1992)

50% (1956)

0% (1998)

85% (1996)

80% (2016)

52% (1985)

72% (1977)

72% (2021)

78% (1979)

35% (1952)

65% (2002)