55% (1968)

63% (1959)

41% (1969)

73% (1986)

29% (1958)

45% (1947)

63% (1989)

45% (1953)

56% (1977)

66% (1987)

0% (1969)

61% (1956)

55% (1969)

65% (1972)

61% (1974)

56% (1973)

80% (1950)

47% (1983)

42% (1980)

66% (1976)