For further details see:
- Bauer, R., Potančoková, M., Goujon, A. & Samir, K. C. (2012). Populations for 171 Countries by Age, Sex, and Level of Education around 2010: Harmonized Estimates of the Baseline Data for the Wittgenstein Centre Projections. (Interim Report No. IR-12-016). Laxenburg, Austria: International Institute for Applied Systems Analysis.