44% (1977)

34% (1980)

42% (1981)

27% (1982)

36% (1975)

25% (1974)

53% (1979)

20% (1972)

60% (2013)

46% (1980)

32% (1981)

44% (1964)

64% (2009)

33% (1984)

10% (1981)

0% (1976)

48% (1975)

38% (1989)

40% (1973)

0% (1982)