100% (1994)

57% (1971)

58% (1970)

49% (1970)

35% (1971)

47% (1966)

52% (1973)

54% (1959)

62% (1974)

60% (1964)

50% (1974)

50% (1964)

45% (1972)

52% (1972)

49% (1973)

57% (1972)

55% (1965)

57% (1968)

0% (1962)

44% (1971)