13% (1977)

65% (1957)

76% (1962)

20% (1987)

50% (2016)

15% (1988)

48% (2000)

85% (1979)

27% (1980)

0% (1988)

72% (1957)

73% (2008)

57% (1984)

0% (1979)

65% (1979)

0% (1980)

20% (1976)

62% (2017)

60% (1982)

40% (1973)