68% (1976)

65% (1980)

54% (1973)

80% (1961)

73% (1973)

0% (1964)

59% (1971)

33% (1975)

68% (1976)

69% (1969)

0% (1966)

30% (1990)

40% (1973)

0% (1979)

0% (1963)

0% (1973)

0% (1984)

75% (1977)

48% (1973)

66% (1973)