56% (1975)

54% (1973)

60% (1980)

68% (1984)

20% (1981)

50% (1975)

43% (1982)

50% (2003)

0% (1984)

50% (1984)

53% (1976)

58% (1974)

48% (1982)

51% (1964)

40% (1977)

57% (1978)

33% (1980)

62% (1971)

56% (1973)

58% (1977)