56% (1980)

69% (2014)

69% (1979)

59% (1978)

61% (1979)

61% (1977)

68% (1981)

71% (1987)

47% (1980)

59% (1979)

42% (1981)

80% (1965)

27% (2000)

50% (1976)

48% (1973)

42% (1975)

50% (1971)

43% (1994)

0% (1982)

64% (1980)