0% (1964)

48% (1976)

52% (1978)

53% (1979)

56% (1967)

72% (1960)

35% (1970)

60% (1963)

40% (1969)

10% (1976)

15% (1981)

40% (1966)

62% (1975)

51% (1979)

56% (1965)

55% (1983)

0% (1957)

50% (1982)

0% (1990)

0% (1958)