64% (1972)

80% (1983)

36% (1987)

40% (1926)

50% (1988)

70% (1982)

60% (1984)

44% (1935)

63% (1981)

37% (1990)

48% (1982)

59% (1980)

48% (1978)

39% (1977)

50% (1988)

30% (1962)

42% (1979)

60% (1984)

44% (1958)

38% (1971)