- Cover cities and towns with population more than 1,000, with population in 1990, 1995, and 2000 (interpolated from the census-year data by using the UN population growth rate).
- Cover cities with population more than 20,000, with census-year population data.
- Used by Gennaioli et al (2013), to obtain subnational region-level income per capita.
- Used by Storeygard (2016) to check whether ever-lit cells from the nighttime light data are part of a city or not.
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