65% (1980)

0% (1980)

40% (1978)

55% (1981)

80% (1991)

30% (1971)

69% (1980)

80% (1986)

70% (1986)

54% (1981)

80% (1987)

70% (1985)

40% (1974)

60% (1970)

46% (1981)

0% (1977)

50% (1972)

0% (1992)

62% (1985)

0% (1983)