56% (1972)

60% (1972)

59% (1979)

42% (1982)

60% (1969)

53% (1980)

48% (1979)

56% (1981)

37% (1984)

49% (1979)

54% (1979)

0% (1969)

63% (1972)

22% (1984)

70% (1976)

0% (1967)

65% (1986)

59% (1984)

60% (1981)

54% (1982)