64% (1965)

58% (1975)

60% (1981)

48% (1972)

60% (1966)

47% (2003)

63% (1966)

58% (1964)

60% (1970)

47% (1995)

65% (1962)

20% (1981)

55% (1970)

55% (1965)

40% (1979)

40% (1977)

60% (1967)

62% (1967)

20% (1972)

54% (1967)