The first ever global data set on the spatial distribution of population broken down by age group and male versus female is now available. The most recent update to the fourth version of the Gridded Population of the World (GPWv.4.10) data collection contains a unique data set on basic demographic characteristics related to age structure and sex ratios for the world, based on the 2010 round of national censuses. The data were developed by the NASA Socioeconomic Data and Applications Center (SEDAC) operated by CIESIN.
The free, downloadable data and descriptions, including documentation and maps, are available at: http://sedac.ciesin.
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