10% (1961)

40% (1958)

51% (1958)

0% (1960)

51% (1966)

63% (1963)

45% (1951)

50% (1966)

59% (1961)

42% (1955)

40% (1952)

60% (1954)

56% (1960)

64% (1971)

0% (1973)

58% (1958)

54% (1954)

10% (1965)

53% (1964)

40% (1969)