EarthTrends (http://earthtrends.wri.org) Searchable Database Results
Provided by the World Resources Institute (http://www.wri.org)
"Water Resources and Freshwater Ecosystems -- Internal Renewable Water Resources (IRWR): Per capita"

"Units: Cubic meters (m^3) per person per year"

,,2007,2006,
World
"World","",6616.9,6693.2,

,,2007,2006,
Region/Classification
"Asia (excluding Middle East)","",3026.0,3058.2,
"Central America & Caribbean","",6289.5,6371.0,
"Europe","",9062.9,9057.7,
"Middle East & North Africa","",1110.5,1131.8,
"North America","",18568.1,18741.1,
"Oceania","",52553.3,53170.1,
"South America","",32119.7,32552.1,
"Sub-Saharan Africa","",4952.0,5063.1,
"Developed Countries","",10213.8,10242.7,
"Developing Countries","",5682.5,5760.7,
"High Income Countries","",9677.9,9732.8,
"Low Income Countries","",3248.9,3307.4,
"Middle Income Countries","",8338.7,8407.6,

,,2007,2006,
Country
"Afghanistan","AFG",1705.2,1769.5,
"Albania","ALB",8504.6,8547.8,
"Algeria","DZA",332.2,337.2,
"Angola","AGO",8774.5,9024.4,
"Antigua and Barbuda","ATG",619.0,634.1,
"Argentina","ARG",6981.9,7052.7,
"Armenia","ARM",3024.7,3016.6,
"Australia {1}","AUS",23911.4,24157.9,
"Austria","AUT",6692.6,6703.2,
"Azerbaijan","AZE",950.7,958.0,
"Bahamas","BHS",60.2,61.2,
"Bahrain","BHR",5.3,5.4,
"Bangladesh","BGD",714.0,727.0,
"Barbados","BRB",295.2,296.3,
"Belarus","BLR",3856.9,3835.1,
"Belgium","BEL",1148.0,1149.8,
"Belize","BLZ",57142.9,58181.8,
"Benin","BEN",1148.1,1183.5,
"Bhutan","BTN",42035.4,42967.0,
"Bolivia","BOL",31866.8,32449.3,
"Bosnia and Herzegovina","BIH",9056.1,9074.6,
"Botswana","BWA",1369.1,1363.6,
"Brazil","BRA",28315.9,28684.4,
"Brunei Darussalam","BRN",21794.9,22251.3,
"Bulgaria","BGR",2757.4,2737.6,
"Burkina Faso","BFA",890.2,916.8,
"Burundi","BDI",1235.7,1284.1,
"Cambodia","KHM",8236.8,8401.5,
"Cameroon","CMR",16178.7,16444.8,
"Canada","CAN",86752.7,87514.6,
"Cape Verde","CPV",566.0,578.0,
"Côte d'Ivoire","CIV",4093.8,4163.9,
"Central African Rep","CAF",33967.7,34449.1,
"Chad","TCD",1455.9,1495.2,
"Chile","CHL",53141.0,53689.6,
"China {2}","CHN",2112.4,2124.8,
"Colombia","COL",44982.1,45636.3,
"Comoros {3}","COM",1426.9,1465.2,
"Congo","COG",52383.2,53922.8,
"Congo, Dem Rep","COD",14712.1,15171.9,
"Costa Rica","CRI",25156.7,25551.3,
"Croatia","HRV",8276.6,8274.8,
"Cuba","CUB",3368.4,3375.2,
"Cyprus","CYP",913.3,923.1,
"Czech Rep","CZE",1289.5,1288.1,
"Denmark","DNK",1098.7,1101.7,
"Djibouti","DJI",365.9,371.7,
"Dominican Rep","DOM",2295.0,2327.3,
"Ecuador","ECU",31739.0,32193.2,
"Egypt","EGY",23.4,23.9,
"El Salvador","SLV",2494.4,2536.1,
"Equatorial Guinea","GNQ",49335.9,50485.4,
"Eritrea","ERI",594.7,614.0,
"Estonia","EST",9623.0,9594.0,
"Ethiopia","ETH",1502.9,1538.7,
"Fiji","FJI",33159.1,33430.9,
"Finland {4}","FIN",20288.2,20334.5,
"France","FRA",2929.1,2939.6,
"French Guiana","GUF",683673.5,701570.7,
"French Polynesia","PYF",37878.8,38461.5,
"Gabon","GAB",114765.6,116643.0,
"Gambia","GMB",1882.1,1928.0,
"Gaza Strip","",11.7,12.0,
"Georgia","GEO",13223.4,13110.1,
"Germany","DEU",1293.4,1293.6,
"Ghana","GHA",1317.7,1343.3,
"Greece","GRC",5197.1,5206.5,
"Greenland","GRL",10578947.4,10578947.4,
"Guatemala","GTM",8254.0,8457.9,
"Guinea","GIN",23042.4,23534.3,
"Guinea-Bissau","GNB",9512.5,9791.9,
"Guyana","GUY",320478.7,320478.7,
"Haiti","HTI",1483.0,1504.0,
"Honduras","HND",12754.8,13030.3,
"Hungary","HUN",597.3,595.8,
"Iceland","ISL",566666.7,572390.6,
"India","IND",1110.0,1125.9,
"Indonesia","IDN",12440.8,12587.3,
"Iran, Islamic Rep","IRN",1804.3,1827.3,
"Iraq","IRQ",1162.1,1191.2,
"Ireland","IRL",11483.5,11639.0,
"Israel","ISR",107.7,109.5,
"Italy","ITA",3137.2,3139.0,
"Jamaica","JAM",3519.5,3532.7,
"Japan","JPN",3350.9,3353.6,
"Jordan","JOR",114.0,116.5,
"Kazakhstan","KAZ",5095.3,5091.8,
"Kenya","KEN",574.8,589.6,
"Korea, Dem People's Rep","PRK",2955.4,2966.8,
"Korea, Rep","KOR",1347.1,1351.5,
"Kyrgyzstan","KGZ",8624.2,8723.0,
"Lao People's Dem Rep","LAO",30747.6,31432.8,
"Latvia","LVA",7329.2,7294.1,
"Lebanon","LBN",1314.0,1328.2,
"Lesotho","LSO",2930.0,2920.2,
"Liberia","LBR",57937.4,59594.8,
"Libyan Arab Jamahiriya","LBY",98.6,100.5,
"Lithuania","LTU",4572.4,4553.7,
"Luxembourg","LUX",2096.4,2123.1,
"Macedonia, FYR","MKD",2647.1,2651.0,
"Madagascar","MDG",17186.0,17639.4,
"Malawi","MWI",1199.8,1225.9,
"Malaysia","MYS",22103.7,22484.1,
"Maldives","MDV",86.7,89.0,
"Mali","MLI",4188.5,4311.0,
"Malta","MLT",124.7,125.3,
"Mauritania","MRT",123.2,126.7,
"Mauritius {5}","MUS",2171.3,2190.3,
"Mexico","MEX",3732.0,3775.6,
"Moldova, Rep","MDA",238.9,238.4,
"Mongolia","MNG",12836.6,12989.9,
"Morocco","MAR",894.7,907.9,
"Mozambique","MOZ",4887.4,4975.7,
"Myanmar","MMR",17107.3,17263.6,
"Namibia","NAM",2973.0,3001.9,
"Nepal","NPL",7021.9,7160.9,
"Netherlands","NLD",669.5,672.1,
"New Zealand","NZL",79892.5,80482.4,
"Nicaragua","NIC",33200.3,33882.1,
"Niger","NER",234.8,242.6,
"Nigeria","NGA",1610.3,1644.7,
"Norway {6}","NOR",81886.4,82274.4,
"Oman","OMN",369.2,377.1,
"Pakistan","PAK",318.4,325.0,
"Panama","PAN",44098.1,44835.8,
"Papua New Guinea","PNG",131010.8,133477.8,
"Paraguay","PRY",14584.9,14918.3,
"Peru","PER",56117.0,56941.5,
"Philippines","PHL",5577.3,5670.2,
"Poland","POL",1393.4,1392.2,
"Portugal","PRT",3587.3,3603.6,
"Puerto Rico","PRI",1775.9,1785.3,
"Qatar","QAT",59.5,60.8,
"Réunion","REU",6195.8,6281.4,
"Romania","ROU",1963.4,1955.7,
"Russian Federation","RUS",30392.5,30256.7,
"Rwanda","RWA",1006.1,1029.3,
"Saint Kitts and Nevis","KNA",545.5,558.1,
"Sao Tome & Principe","STP",13292.7,13625.0,
"Saudi Arabia","SAU",93.0,95.3,
"Senegal","SEN",2111.6,2161.5,
"Serbia and Montenegro","YUG",4193.3,4191.7,
"Sierra Leone","SLE",27576.7,28174.0,
"Singapore","SGP",135.3,137.0,
"Slovakia","SVK",2332.9,2332.9,
"Slovenia","SVN",9501.3,9496.4,
"Solomon Islands","SLB",89043.8,91224.5,
"Somalia","SOM",684.5,706.2,
"South Africa","ZAF",939.2,941.3,
"Spain","ESP",2550.2,2563.5,
"Sri Lanka","LKA",2372.1,2391.0,
"Sudan","SDN",793.8,811.0,
"Suriname","SUR",193406.6,194690.3,
"Swaziland","SWZ",2575.6,2565.6,
"Sweden","SWE",18801.5,18853.4,
"Switzerland","CHE",5553.3,5561.7,
"Syrian Arab Rep","SYR",350.2,358.8,
"Tajikistan","TJK",9922.2,10059.2,
"Tanzania","TZA",2114.9,2152.5,
"Thailand","THA",3216.8,3242.6,
"Togo","TGO",1777.4,1823.7,
"Trinidad and Tobago","TTO",2924.6,2933.5,
"Tunisia","TUN",406.5,410.9,
"Turkey","TUR",3020.2,3060.3,
"Turkmenistan","TKM",273.9,277.6,
"Uganda","UGA",1260.3,1306.2,
"Ukraine","UKR",1166.8,1154.7,
"United Arab Emirates","ARE",31.4,32.2,
"United Kingdom","GBR",2415.9,2422.8,
"United States","USA",9215.0,9301.4,
"Uruguay","URY",16813.9,16920.0,
"Uzbekistan","UZB",597.0,605.6,
"Venezuela","VEN",26096.3,26545.1,
"Viet Nam","VNM",4239.7,4294.4,
"Yemen","YEM",183.7,189.5,
"Zambia","ZMB",6652.3,6761.7,
"Zimbabwe","ZWE",931.5,937.0,

Footnotes
"1 -- Australia"
"Population data includes Christmas Island, Cocos (Keeling) Islands, and Norfolk Island."

"2 -- China"
"Population data do not include Hong Kong and Macao, Special Administrative Regions (SAR) of China."

"3 -- Comoros"
"Population data includes the island of Mayotte."

"4 -- Finland"
"Population data includes Aland Islands."

"5 -- Mauritius"
"Population data includes Agalega, Rodrigues, and Saint Brandon."

"6 -- Norway"
"Population data includes Svalbard and Jan Mayen Island."

Source
"Food and Agriculture Organization of the United Nations (FAO) Land and Water Development Division. 2007. AQUASTAT Information System on Water and Agriculture: Online database. Rome: FAO. Available on-line at http://www.fao.org/nr/water/aquastat/data/query/index.html."
""
"Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat, 2005. World Population Prospects: The 2004 Revision. Dataset on CD-ROM. New York: United Nations. Available on-line at  http://www.un.org/esa/population/ordering.htm."


Technical Notes
"Definition:"
"Per Capita Internal Renewable Water Resources is the average annual volume of water generated within a country's borders on a per person basis. It is comprised of the average annual flow of rivers and the recharge of groundwater (aquifers) generated from endogenous (internal) precipitation. Natural incoming flows originating outside a country's borders are not included in the total. Even though IRWR measures a combination of surface and groundwater resources, it is typically less than the sum of the two because of overlap--water resources that are counted with both surface and groundwater (see the Methodology section for a more complete description of overlap)."
""
"IRWR is calculated as follows:"
"IRWR = surface water resources + groundwater resources - overlap."
""
"Per capita water resources are calculated by WRI using 2006 and 2007 population estimates from the United Nations Population Division. For a full description of population data sources, collection methodologies, and data uncertainties, please see Population: Total, both sexes Technical Notes."
""
"Years Covered and Frequency of Update:"
"Per Capita Internal Renewable Water Resources estimates are presented for 2006 and 2007 using population estimates for 2006 and 2007."
""
"Original data were actually collected over a period of 15 to 25 years and have been compiled since 2003 by the AQUASTAT global information system of water and agriculture. The current AQUASTAT database provides data per 5-year period if available. Data are presented by WRI as a single value for 1960-2005 because, for this variable, AQUASTAT lists only one number for each country over the entire time period covered by the database."
""
"AQUASTAT updates their website as new data become available, or when FAO conducts special regional studies."
""
"Please note that the AQUASTAT database also contains estimates of per capita IRWR that include estimates for most countries for most 5-year periods prior to the values published here; population estimates used in per capita calculations, however, may differ."
""
"Methodology:"
"Per capita internal water resources were calculated by WRI using the United Nations Population Division's World Population Prospects: The 2004 Revision.  For more information about the collection methodology and reliability of the UN population data, please refer to the EarthTrends technical notes on population."
""
"Internal Renewable Water Resources (IRWR) are computed by adding up average annual surface runoff and groundwater recharge occurring within a country's borders. Surface water resources are usually computed by measuring or assessing total river flow occurring in a country on a yearly basis. Groundwater resources are estimated by measuring rainfall in arid areas where rainfall is assumed to infiltrate into aquifers. In humid areas, groundwater is estimated by looking at the surface flow of rivers."
""
"Special care is taken to avoid double counting resources that are common to both surface and groundwater called overlap. Two types of exchanges create overlap: contribution of aquifers to surface flow and recharge of aquifers by surface runoff. Aquifers contribute to surface flows in humid temperate or tropical regions and in special cases in regions called karstic domains (containing a porous karst limestone rock matrix). Surface water flow recharges groundwater by infiltrating through the soil during floods in arid, semi-arid, and karstic areas. This recharge is either directly measured or inferred by characteristics of the aquifers and piezometric levels."
""
"AQUASTAT collects its information from a number of sources--national water resources and irrigation master plans; national yearbooks statistics and reports; reports from FAO; international surveys; and results from surveys made by national or international research centers. In most cases, a critical analysis of the information was necessary to ensure consistency between the different data collected for a given country."
""
"When possible, cross-checking of information between countries was used to improve assessment in countries where information was limited. When several sources give different or contradictory figures preference was always given to information collected at national or sub-national level. This preference is based on the assumption that no regional information can be more accurate than studies carried out at the country level. Unless proven to be wrong, official rather than unofficial sources were used. In the case of shared water resources, a comparison between countries was made to ensure consistency at river-basin level."
""
"For more information, please refer to the following publication: Food and Agriculture Organization of the United Nations (FAO), Water Resources, Development and Management Service. 2003. AQUASTAT Information System on Water and Agriculture: Review of World Water Resources by Country.  Available on-line at  http://www.fao.org/waicent/faoinfo/agricult/agl/aglw/aquastat/water_res/index.htm. Rome: FAO."
""
"Data Reliability:"
"While AQUASTAT represents the most complete and careful compilation of water resources statistics to date, freshwater data are generally of poor quality.    Information sources are various but rarely complete.  Access to information on water resources is still sometimes restricted for reasons related to sensitivity at the regional level.  The accuracy and reliability of the information vary greatly among regions, countries, and categories of information, as does the year in which the information was gathered.  As a result, no consistency can be ensured at the regional level on the duration and dates of the period of reference."
""
"For more information, please refer to the original data source or to the 2003 print publication Review of World Water Resources by Country in FAO's AQUASTAT Programme."