58% (1988)

63% (1979)

54% (1983)

38% (1992)

77% (1993)

35% (1983)

39% (1985)

54% (1984)

20% (1979)

43% (1994)

48% (1982)

66% (1981)

52% (1980)

55% (1990)

60% (1979)

20% (1987)

0% (1988)