60% (1984)

43% (1987)

69% (1983)

60% (1986)

66% (1983)

61% (1982)

0% (1986)

67% (1984)

37% (1983)

50% (1985)

75% (1985)

40% (1985)

48% (1953)

48% (1984)

63% (1987)

64% (1984)

60% (1984)

50% (1987)

63% (1983)

60% (1987)