72% (1971)

35% (1971)

62% (1971)

60% (1974)

65% (1966)

60% (1969)

80% (1968)

56% (1972)

60% (1971)

50% (1973)

40% (1956)

60% (1969)

0% (1974)

40% (1972)

70% (1972)

0% (1970)

60% (1972)

0% (1969)

20% (1973)

0% (1971)