30% (1973)

60% (1973)

80% (1965)

0% (1966)

0% (1967)

57% (1973)

0% (1971)

50% (1973)

50% (1974)

50% (1972)

68% (1970)

0% (1977)

56% (1969)

0% (1967)

70% (1975)

0% (1974)

54% (1978)

72% (1975)

0% (1966)

10% (1975)