The sample included 19 developed countries D, 8 in economic transition ET and 63 developing countries; of the latter, 24 were located in Asia and Oceania AO, 21 in Latin America and the Caribbean LAC, and 18 in Africa A.
Se incluyeron 19 países desarrollados D, 8 en transición económica TE y 63 en desarrollo; de éstos, 24 de Asia y Oceanía AO, 21 de Latinoamérica y el Caribe LAC y 18 de África A.