60% (1977)

58% (1964)

68% (1994)

45% (1964)

27% (1973)

60% (1943)

0% (1928)

39% (1977)

25% (1992)

52% (1929)

52% (1975)

30% (1966)

20% (1961)

35% (1927)

50% (1966)

40% (1974)

10% (1992)

50% (1991)

47% (1987)

60% (1981)