53% (1983)

69% (1984)

45% (1991)

50% (1986)

40% (1988)

56% (1993)

80% (1992)

46% (1988)

50% (1985)

64% (1985)

38% (1985)

49% (1982)

20% (1989)

53% (1980)

0% (1990)

0% (1990)

0% (1992)

55% (1984)

0% (1982)

54% (1983)