10% (1954)

57% (1973)

80% (1974)

37% (1966)

60% (1982)

46% (1980)

48% (1972)

50% (1971)

0% (1985)

61% (1979)

62% (1975)

0% (1986)

75% (1967)

0% (1971)

59% (1955)

67% (1988)

27% (1966)

60% (1974)

45% (1995)

0% (1957)