0% (1979)

85% (1981)

74% (1990)

60% (1970)

0% (1970)

63% (1983)

78% (1988)

72% (1971)

70% (1960)

0% (1986)

48% (1986)

55% (1980)

50% (1986)

35% (1983)

64% (1978)

58% (1980)

50% (1978)

71% (1991)

0% (1978)

0% (1959)