63% (1963)

63% (2000)

48% (1983)

50% (1955)

43% (1966)

57% (1953)

65% (1960)

63% (1978)

49% (1985)

57% (1967)

50% (1966)

60% (1968)

50% (1990)

55% (1981)

65% (1963)

67% (1967)

44% (1982)

39% (1965)

49% (1958)

70% (1983)