79% (1955)

79% (1972)

70% (1975)

74% (1976)

56% (1960)

75% (1978)

50% (1956)

53% (1949)

52% (1968)

50% (1991)

50% (1949)

61% (1965)

67% (1950)

50% (1957)

53% (1955)

44% (1979)

50% (1955)

50% (1954)

56% (1948)

55% (1960)