according to a World Bank report of 2008 tariffs range from only RWF 2.5 (gravity-fed systems) to RWF 15 (pumping systems) per jerrycan (equivalent to US$0.25 to US$1.40/m3). In addition, and to alleviate the financial burden for the poorest part of the rural population, the districts keep a list of vulnerable households (widows, poor single-parent households), who get free access to water points. These lists are drawn up by communities and approved by local authorities. According to the World Bank, "the principle of paying water at standposts in accordance with the volume consumed has been widely accepted, as the water users acknowledged the improvements in service delivery. More than fifteen years of experience with administrative or community management of water services proved that free or unpaid water resulted in little water or no water at all." For the few house connections the volumetric tariff is set at between RWF622 and RWF850 per m3 (US$1.13 and 1.55 per m3) according to the regulatory agency and at RWF185 to RWF600 per m3 according to the World Bank. Urban areas. As of June 2013 the urban water tariff was RWF240 per m3 for the first five cubic meters per month and RWF300 per m3 for any consumption between 6 and 20 m3 per month. Higher tariffs are charged for higher consumption. Water at public kiosks is sold at RWF240 per m3. Cost recovery Cost recovery in rural water schemes has apparently improved in those schemes that are run as public-private partnerships, despite the fact that some poor users receive water for free. Private operators also pay a monthly rent to the districts for the right to use the systems, which remain publicly owned. Investment Level and composition. Investments in rural water supply and sanitation increased from US$3.5 million in 2002 to US$32 million in 2006. Mechanism. Investments are channeled from donors and the national government to districts and communities through a Community Development Fund (CDF) established in 2001. 10% of tax revenues are allocated to the CDF by law, although actual transfers remained short of this target in 2003. In that year, 4 bn Rwandan Francs (RWF) were approved, but only 1 bn RWF were disbursed. The 30 Districts of Rwanda sign annual performance contracts with the President of the Republic about the construction of water facilities and the protection of catchment areas. A commission assesses progress on a quarterly basis. Financing A