42% (1997)

70% (1961)

56% (1960)

27% (1961)

52% (1970)

41% (1964)

80% (1976)

55% (1961)

0% (1961)

62% (1968)

37% (1959)

40% (1961)

60% (1962)

40% (1959)

75% (1959)

0% (1961)

0% (1959)

59% (1963)

50% (1979)

44% (1958)