29% (1984)

34% (1983)

46% (1975)

47% (1964)

44% (1989)

30% (1974)

43% (1981)

66% (2009)

51% (1979)

38% (1975)

22% (1981)

37% (1978)

40% (1977)

40% (1963)

0% (1982)

40% (1973)

37% (1987)

23% (1974)

36% (1971)

28% (1979)