, Top 5 Most
, The Environment
P. H. Gleick, Pacific Institute. (2013).Total Renewable Freshwater Supply
by Country (2013 Update).
Data is annual renewable water resources ranked by volume for the year 2013 (latest year for which reliable data is available as of January 28th, 2015) in cubic kilometres per year (km3/yr). Data for this list are typically comprised of both renewable surface water and groundwater supplies, including surface inflows from neighbouring countries. This data represents average freshwater resources in a country (actual annual renewable supply will vary from year to year).
Please note: the detailed country data in this list should be viewed, and used, with caution as the data comes from different sources and was estimated over different periods. Many countries do not directly measure or report internal water resources data, so some of these entries were produced using indirect methods.