60% (1964)

0% (1970)

0% (1977)

52% (1977)

50% (1965)

73% (1971)

45% (1969)

45% (1971)

0% (1968)

0% (1970)

62% (1962)

50% (1968)

0% (1965)

10% (1974)

63% (1966)

85% (1976)

58% (1961)

50% (1965)

65% (1982)

70% (1980)