67% (1966)

71% (1968)

86% (1967)

80% (1968)

61% (1967)

65% (1968)

50% (1974)

0% (1970)

0% (1973)

0% (1965)

80% (1972)

65% (1974)

70% (1974)

84% (1971)

0% (1972)

65% (1971)

83% (1971)

69% (1965)

70% (1973)

70% (1976)