53% (1969)

58% (1970)

52% (1970)

50% (2003)

63% (1965)

62% (1974)

54% (1972)

45% (1968)

37% (1969)

49% (1970)

53% (1969)

58% (1966)

42% (1979)

50% (1964)

28% (2001)

49% (2001)

60% (1956)

0% (1957)

45% (1964)

48% (2004)