39% (1988)

90% (1976)

51% (1981)

43% (1976)

48% (2003)

45% (1984)

0% (1971)

40% (1959)

56% (1974)

20% (1988)

0% (1947)

50% (1972)

30% (1974)

39% (1975)

0% (1951)

0% (1997)

0% (1954)

0% (1974)

0% (1958)

42% (1959)