70% (1979)

78% (2014)

74% (1985)

72% (2023)

74% (1996)

71% (1970)

50% (1995)

63% (1984)

70% (2009)

55% (1950)

65% (1967)

65% (1958)

71% (1982)

40% (1956)

78% (2007)

64% (1965)

76% (1983)

71% (1993)

69% (1998)

72% (1991)