57% (1979)

57% (1958)

58% (1974)

56% (1943)

60% (1970)

30% (1980)

51% (1939)

47% (1986)

70% (1977)

0% (1989)

52% (1969)

56% (1957)

43% (1975)

56% (1989)

60% (1968)

55% (1958)

0% (1983)

0% (1980)

37% (1988)

48% (1973)