the methods and materials of demography
... N12. Out. N2+. N21. N22. Source: U.S. Bureau of the Census,. 1995b, Chapter 11, p ... Delta. This index measures the percentage of one group that would have to ...
... N12. Out. N2+. N21. N22. Source: U.S. Bureau of the Census,. 1995b, Chapter 11, p ... Delta. This index measures the percentage of one group that would have to ...