This appendix lists the data sources used to estimate the population figures in the GIS database and other relevant information pertaining to the demographic estimates and GIS data sets. The data for the nineteen West African countries have been estimated by Benoit Ninnin for the West Africa Long Term Perspective Study (WALTPS) carried out by the Club du Sahel/OECD (see Ninnin 1994). All other figures have been estimated by the author at NCGIA. Unless otherwise stated the administrative boundaries are the same as those in the African Data Sampler (WRI 1995) or in the WALTPS database (see Brunner et al 1995).
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Last modified: 20 February 1997.
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