65% (1956)

50% (1977)

32% (1976)

40% (1977)

35% (1978)

31% (1975)

0% (1973)

35% (1977)

34% (1983)

51% (1979)

66% (2009)

0% (1982)

25% (1974)

23% (1974)

27% (1982)

48% (1975)

0% (1991)

40% (1973)

50% (1956)

55% (1964)