40% (1946)

49% (1967)

47% (1964)

0% (1946)

42% (1963)

61% (1959)

72% (1955)

53% (1961)

58% (1965)

50% (1953)

0% (1965)

57% (1970)

51% (1970)

35% (1963)

54% (1969)

53% (1960)

63% (1967)

52% (1961)

45% (1981)

52% (1951)