50% (1975)

43% (1972)

52% (1958)

40% (1978)

0% (1973)

0% (1965)

70% (1960)

0% (1965)

0% (1979)

60% (1985)

60% (1969)

20% (1984)

70% (1958)

67% (1964)

60% (1970)

70% (1969)

80% (1978)

70% (1961)

53% (1981)

40% (1977)