73% (1981)

71% (1971)

76% (1970)

72% (1982)

52% (1974)

74% (1970)

50% (1984)

59% (1984)

0% (1992)

0% (1977)

47% (2005)

44% (1972)

64% (1979)

50% (1976)

65% (1988)

65% (1978)

56% (2014)

58% (1983)

69% (1986)

0% (1983)