0% (1979)

49% (1973)

53% (1974)

20% (1974)

52% (1983)

86% (1980)

60% (1968)

50% (1970)

55% (1975)

40% (1979)

0% (1969)

63% (1985)

60% (1991)

0% (1986)

62% (1981)

41% (1976)

57% (1974)

67% (1989)

65% (1978)

60% (1970)