Résumé : This note provides an overview of: (i) the threshold used in policy discussions to assess the extent to which users of an infrastructure service have an affordability problem or not for an acceptable level of consumption of the service as defined by international organizations or sometimes national governments; (ii) the average share of resources allocated to each infrastructure subsector for a sample of 90 countries for developing and emerging economies and for 26 European countries, as a proxy for developed countries practice; and (iii) an assessment of this share for consumption quartiles for developing economies and income quintiles for the European economies. It then produces a series of tables of regional averages which could be used to conduct rough benchmarkings of national observations. Discussions of data limitations and suggestions for additional work conclude the note.