60% (1974)

60% (1977)

60% (1973)

50% (1976)

0% (1963)

70% (1959)

50% (1989)

50% (1960)

60% (1940)

57% (1987)

57% (1975)

30% (1985)

80% (1978)

0% (1980)

60% (1968)

0% (1968)

5% (1987)

0% (1961)

55% (1970)

0% (1925)