0% (1975)

40% (1991)

38% (1980)

60% (1977)

35% (1977)

0% (1977)

100% (1976)

60% (1979)

0% (1988)

70% (1976)

0% (1981)

32% (1978)

0% (1991)

50% (1980)

50% (1993)

72% (1958)

57% (1988)

0% (1977)

42% (1979)

62% (1986)