"Demographics : the qualities (such as age, sex, and income) of a specific group of people."
- Merriam-Webster Online Dictionary
"Demography is the science of populations. Demographers seek to understand population dynamics by investigating three main demographic processes: birth, migration, and aging (including death). All three of these processes contribute to changes in populations, including how people inhabit the earth, form nations and societies, and develop culture."
-Max Planck Institute for Demographic Research
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