63% (1984)

40% (1987)

0% (1989)

54% (1929)

50% (1928)

52% (1971)

50% (1939)

0% (1960)

72% (1966)

40% (1986)

20% (1934)

39% (1977)

50% (1985)

70% (1977)

63% (1978)

20% (1981)

72% (1982)

80% (1970)

10% (1925)

47% (1968)