Global Analysis and Assessment of Sanitation and Drinking-Water (GLAAS)
is produced every two years by the World Health Organization (WHO) on behalf of UN-Water. It provides a global update on the policy frameworks, institutional arrange- ments, human resource base, and international and national finance streams in support of sanitation and drinking-water. It is a substantive input into the activities of Sanitation and Water for All (SWA).
Indeed very useful reference