50% (1957)

57% (1971)

48% (1955)

80% (1976)

44% (1977)

0% (1988)

0% (1987)

50% (1991)

0% (1986)

64% (1970)

60% (1969)

70% (1986)

60% (1966)

60% (1963)

32% (1979)

45% (1963)

0% (1976)

58% (1945)

0% (1990)

70% (1984)