50% (1968)

52% (1964)

10% (1969)

57% (1955)

44% (1965)

56% (1966)

47% (1966)

45% (1960)

70% (1960)

70% (1965)

60% (1966)

30% (1970)

50% (1965)

55% (1967)

60% (1954)

60% (1970)

33% (1965)

0% (1965)

0% (1969)

28% (1984)