0% (1959)

57% (1960)

50% (1971)

44% (1976)

35% (1971)

55% (1970)

0% (1976)

45% (1977)

0% (1969)

45% (1955)

10% (1959)

40% (1972)

50% (1970)

20% (1976)

0% (1973)

70% (1957)

0% (1961)

70% (1957)

50% (1959)

0% (1968)