51% (1965)

52% (1969)

70% (1958)

46% (1963)

50% (1960)

78% (1950)

42% (1951)

60% (1951)

77% (1950)

45% (1959)

40% (1956)

45% (1947)

45% (1958)

50% (1956)

50% (1949)

45% (1971)

50% (1960)

61% (1956)

50% (1961)

50% (1974)