The heavily indebted poor countries (HIPC) are a group of 37 developing countries with high levels of poverty and debt overhang which are eligible for special assistance from the International Monetary Fund (IMF) and the World Bank. The criteria used for country selection excluded the mostly highly populated developing countries (for example, Nigeria — 120 million inhabitants — which was on the very first list in 1996) and kept only small countries that are both very poor and heavily indebted... The countries where the majority of the world's poor people live are not included: China, India, Indonesia, Brazil, Argentina, Mexico, the Philippines, Pakistan, Nigeria, and the like. In fact, the initiative concerns only 11 percent of the total population of developing countries... It must be noted 'that to benefit from the HIPC initiative, the countries concerned had to be free of arrears to the IMF and the World Bank. The heavily indebted poor countries (HIPC) are a group of 37 developing countries with high levels of poverty and debt overhang which are eligible for special assistance from the International Monetary Fund (IMF) and the World Bank. The HIPC Initiative was initiated by the International Monetary Fund and the World Bank in 1996, following extensive lobbying by NGOs and other bodies. It provides debt relief and low-interest loans to cancel or reduce external debt repayments to sustainable levels, meaning they can repay debts in a timely fashion in the future. To be considered for the initiative, countries must face an unsustainable debt burden which cannot be managed with traditional means. Assistance is conditional on the national governments of these countries meeting a range of economic management and performance targets and undertaking economic and social reforms. As of January 2012, the HIPC Initiative had identified 39 countries (33 of which are in Sub-Saharan Africa) as being potentially eligible to receive debt relief. The 36 countries that have so far received full or partial debt relief are: Tanzania Is now not part of the HIPC. 36 countries have completed the program and had their external debt cancelled in full, after Chad passed the Completion Point in 2015. An additional three countries (Eritrea, Somalia and Sudan) are being considered for entry into the program. To receive debt relief under HIPC, a country must first meet HIPC's threshold requirements. At HIPC's inception in 1996, the primary threshold requirement was that the country's debt remains at unsustainable levels despite full application of traditional, bilateral debt relief. At the time, HIPC considered debt unsustainable when the ratio of debt-to-exports exceeded 200-250% or when the ratio of debt-to-government revenues exceeded 280%. The IMF estimates that the total cost of providing debt relief to the 40 countries currently eligible for the HIPC program would be around $71 billion (in 2007 dollars). Half of the funding is provided by the IMF, World Bank, and other multilateral organizations, while the other half is provided by the creditor countries. The IMF's share of the cost is currently being funded by the proceeds of gold sales by the organization in 1999, but it estimated that this will not be enough to cover the full cost, and further funding will need to be raised if additional countries such as Sudan and Somalia meet the qualification requirements for entry into the program. Critics soon began to attack HIPC's scope and its structure. First, they criticized HIPC's definition of debt sustainability, arguing that the debt-to-export and debt-to-government-revenues criteria were arbitrary and too restrictive. As evidence, critics highlighted that, by 1999, only four countries had received any debt relief under HIPC. Second, the six-year program was too long and too inflexible to meet the individual needs of debtor nations. Third, the IMF and the World Bank did not cancel any debt until the completion point, leaving countries under the burden of their debt payments while they struggled to institute structural reforms. Fourth, the ESAF conditions often undermined poverty-reduction efforts. For example, privatization of utilities tended to raise the cost of services beyond the citizens' ability to pay. Finally, critics attacked HIPC as a program designed by creditors to protect creditor interests, leaving countries with unsustainable debt burdens even upon reaching the decision point. Inadequate debt relief for such countries means that they will need to spend more on servicing debts, rather than on actively investing in programs that can reduce poverty.