0% (1979)

49% (1973)

53% (1974)

55% (1973)

37% (1972)

50% (1970)

57% (1974)

60% (1968)

62% (1981)

41% (1976)

60% (1970)

55% (1975)

40% (1979)

20% (1974)

60% (1991)

50% (1973)

86% (1980)

40% (1984)

0% (1976)

62% (1975)