0% (1979)

0% (1978)

85% (1978)

50% (1976)

59% (1975)

80% (1979)

0% (1979)

60% (1983)

40% (1973)

0% (1978)

0% (1976)

64% (1978)

79% (1977)

0% (1987)

57% (1973)

77% (1975)

30% (1988)

76% (1978)

0% (1985)

0% (1975)