Demography is the scientific study of human population dynamics. It encompasses the study of the size, structure and distribution of populations, and how populations change over time due to births, deaths, migration and ageing. Demographic analysis can relate to whole societies or to groups defined by criteria such as education, nationality, religion and ethnicity. Most countries' demography is regarded as a branch of either economics or sociology. Formal demography limits its object of study to the measurement of populations processes, while the more broad field of population studies also analyze the relationships between economic, social, cultural and biological processes influencing the population.Andrew Hinde Demographic Methods Ch. 1 ISBN 0340718927

The term demographics is often used erroneously for demography, but refers rather to selected population characteristics as used in marketing or opinion research, or the demographic profiles used in such research.

Data and methods

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Demography may rely on the use of large amounts of data, including census returns and vital statistics registers, or incorporate survey data using indirect estimation techniques. The earliest modern census was carried out in the United States in 1790, although the Scandinavian countries had earlier censuses.

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churras no lucas doido, :D, to morto jaja dormir :*
_romanazzi (Lucas Romanazzi) Sat, 07 Nov 2009 01:59:11 -0000
churras no lucas doido, :D, to morto jaja dormir :*
Ko gt c d usir . Huhu.. =p hehe.. Dasar cikcik2 RT @aristyamichiko: @dahippo beteeeee hus sana pergi
dahippo (Farisan Luke) Sat, 07 Nov 2009 01:59:11 -0000
Ko gt c d usir . Huhu.. =p hehe.. Dasar cikcik2 RT @aristyamichiko: @dahippo beteeeee hus sana pergi
@BrunoGenzLovers, obrigada pela indicação amoor, ;D
arianeeh (Ariane) Sat, 07 Nov 2009 01:59:11 -0000
@BrunoGenzLovers, obrigada pela indicação amoor, ;D
Although you want to be close to someone special today, it's d... More for Aries http://bit.ly/wE0V7
AlisonRoper (AlisonRoper) Sat, 07 Nov 2009 01:59:11 -0000
Although you want to be close to someone special today, it's d... More for Aries http://bit.ly/wE0V7
Just realized what I just realized, we'd never have to wonder if we missed out on each other now
gabilouise (Gabrielle Louise) Sat, 07 Nov 2009 01:59:11 -0000
Just realized what I just realized, we'd never have to wonder if we missed out on each other now
Yes i will take extra special care of yours:D lovvee!(:
CarsonCaffiene (Mac) Sat, 07 Nov 2009 01:59:11 -0000
Yes i will take extra special care of yours:D lovvee!(:

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