In every region of the developing world, the percentage of people living on less than $1.25 a day and the number of poor declined between 2005-2008, according to estimates released today by the World Bank. This across-the-board reduction over a three-year monitoring cycle marks a first since the Bank began monitoring extreme poverty.
In April 2013, the World Bank released the developing world's poverty estimates at 2010. Same as previous rounds, the new poverty estimates combine the Purchasing Power Parity (PPP) exchange rates for household consumption from the 2005 International Comparison Program with data from more than 850 household surveys across 127 developing countries. Over two million randomly sampled households were interviewed for the 2010 estimate, representing 85 percent of the population of the developing world. >> PovcalNet