60% (1984)

61% (1982)

69% (1983)

43% (1987)

0% (1986)

50% (1984)

60% (1987)

64% (1984)

71% (1985)

48% (1953)

50% (1983)

77% (1984)

67% (1984)

60% (1984)

63% (1983)

60% (1986)

48% (1984)

63% (1987)

37% (1983)

40% (1985)