JMP methodology : 2017 update & SDG baselines

This document describes the methods and rules applied in the JMP report, "Progress on drinking water, sanitation and hygiene: 2017 update and SDG baselines".The JMP produces estimates for a total of 26 indicators related to water, sanitation and hygiene. Estimates are produced at the country, regional, and the global levels. All estimates are expressed as the proportion of the population, which uses a specific type of water, sanitation, or hygiene technology or level of service. The document describes in detail each of the five steps used to produce these estimates:

1. Identification of appropriate national datasets
2. Extraction of data from national datasets into harmonized tables of data input
3. Use of the data inputs to model country estimates
4. Consultation with countries to review the estimates
5. Aggregation of country estimates to create regional and global estimates.