53% (1986)

67% (1977)

53% (1980)

38% (1994)

65% (1989)

37% (1983)

0% (1987)

58% (1978)

76% (1982)

72% (1983)

56% (1979)

51% (1988)

62% (1985)

44% (1981)

54% (1977)

52% (1982)

0% (1983)

0% (1980)

0% (1981)

64% (1990)