85% (1988)

47% (1981)

87% (1985)

0% (1986)

62% (1987)

60% (1980)

0% (1981)

56% (1984)

56% (1979)

40% (1981)

10% (1981)

43% (1989)

0% (1982)

44% (1981)

53% (1992)

0% (1986)

70% (1987)

68% (1977)

30% (1992)

60% (1977)