70% (1976)

70% (1977)

53% (1980)

0% (1988)

70% (1972)

0% (1974)

33% (1959)

78% (1977)

100% (1970)

0% (1985)

50% (1976)

0% (1982)

87% (1975)

60% (1976)

85% (1988)

100% (1971)

60% (1986)

100% (1963)

0% (1981)

90% (1976)