57% (1988)

43% (1988)

60% (1983)

66% (1987)

67% (1986)

80% (1974)

0% (1984)

40% (1988)

47% (1983)

50% (1988)

70% (1986)

30% (1979)

60% (1983)

0% (1984)

51% (1983)

37% (1987)

46% (1996)

0% (1985)