59% (1971)

46% (1970)

60% (1982)

56% (1971)

41% (1992)

55% (1972)

56% (1971)

0% (1986)

59% (1964)

62% (1980)

80% (1965)

54% (1989)

63% (1972)

40% (1975)

55% (1968)

54% (1983)

44% (1975)

30% (1973)

32% (1984)

43% (1979)