55% (1977)

45% (1977)

69% (1957)

57% (1972)

49% (1970)

0% (1975)

53% (1973)

88% (1960)

35% (1972)

50% (1971)

42% (1970)

55% (1969)

27% (1971)

35% (1971)

45% (1959)

74% (1972)

30% (1971)

0% (1973)

10% (1972)

50% (1964)