63% (1966)

40% (1969)

60% (1967)

47% (1995)

65% (1962)

60% (1966)

64% (1965)

60% (1970)

40% (1977)

67% (1962)

50% (1966)

58% (1970)

48% (1972)

54% (1967)

55% (1970)

58% (1975)

47% (1974)

67% (1966)

58% (1964)

57% (1979)