56% (1982)

80% (1980)

46% (1985)

82% (1981)

75% (1983)

76% (1975)

64% (1977)

54% (1978)

59% (1989)

55% (1989)

58% (1989)

43% (1984)

67% (1980)

72% (1977)

0% (1978)

63% (1980)

60% (1980)

33% (1984)

58% (1982)

73% (1980)