63% (1929)

50% (1969)

40% (1985)

37% (1975)

58% (1974)

50% (1970)

30% (1971)

70% (1964)

57% (1967)

10% (1972)

60% (1965)

58% (1964)

10% (1957)

37% (1984)

50% (1960)

0% (1963)

50% (1960)

0% (1959)

60% (1960)

20% (1981)