50% (1979)

52% (1985)

54% (1976)

50% (1962)

54% (1934)

50% (1962)

70% (1963)

55% (1975)

0% (1937)

40% (1960)

55% (1957)

35% (1958)

30% (1958)

45% (1955)

0% (1976)

0% (1975)