59% (1982)

42% (1985)

60% (1968)

54% (1961)

0% (1975)

80% (1981)

100% (1974)

58% (1968)

70% (1977)

50% (1971)

80% (1959)

0% (1981)

60% (1976)

62% (1970)

70% (1986)

0% (1958)

52% (1954)

40% (1981)

67% (1966)

85% (1981)