50% (1953)

61% (1959)

53% (1960)

50% (1951)

50% (1950)

48% (1958)

46% (1954)

56% (1975)

57% (1950)

50% (1949)

55% (1955)

40% (1980)

53% (1956)

60% (1953)

44% (1953)

57% (1946)

57% (1955)

60% (1963)

50% (1948)

50% (1955)