50% (1963)

50% (1964)

63% (1987)

65% (1966)

61% (1965)

0% (1968)

58% (1962)

73% (1964)

42% (1979)

57% (1969)

54% (1961)

52% (1968)

71% (1965)

53% (1971)

69% (1968)

62% (1975)

62% (1966)

40% (1964)

55% (1991)

50% (1966)