63% (1973)

50% (1973)

0% (1970)

52% (1969)

50% (1970)

50% (1975)

63% (1968)

0% (1975)

0% (1974)

62% (1969)

47% (1974)

50% (1969)

57% (1968)

70% (1967)

68% (1968)

54% (1968)

60% (1971)

50% (1972)

50% (1969)

58% (1967)