66% (1973)

56% (1973)

50% (1973)

50% (1974)

66% (1977)

50% (1975)

44% (1973)

47% (1975)

61% (1975)

50% (1971)

56% (1975)

60% (1974)

70% (1974)

40% (1982)

60% (1975)

57% (1974)

38% (1977)

50% (1982)

0% (1967)

55% (1973)