50% (1980)

50% (1924)

49% (1971)

52% (1968)

40% (1972)

53% (1979)

50% (1961)

59% (1976)

10% (1988)

70% (1971)

20% (1981)

55% (1991)

46% (1968)

50% (1968)

30% (1970)

70% (1930)

0% (1991)

47% (1985)

60% (1970)

75% (1983)