50% (1956)

25% (1981)

53% (1979)

40% (1963)

44% (1989)

27% (1982)

0% (1982)

37% (1978)

46% (1975)

36% (1975)

39% (1987)

34% (1983)

28% (1979)

30% (1974)

20% (1972)

42% (1981)

48% (1975)

32% (1976)

60% (2013)

43% (1977)