55% (1969)

65% (1970)

50% (1972)

63% (1972)

57% (1971)

0% (1969)

60% (1969)

52% (1970)

35% (1969)

60% (1973)

55% (1965)

70% (1970)

47% (1966)

50% (1969)

51% (1968)

37% (1968)

60% (1966)

51% (1970)

60% (1970)