Based on this new international line, the incidence of poverty was estimated for developing countries in 2005, and the estimates for previous years were amended retroactively to 1981. Firstly, the higher PPP rates in poor countries mean that one unit of the local currency yields less in parity terms, thereby increasing the value of the international line in local currency terms. Secondly, the review lowered the international poverty line, because if the poverty line of 1.08 DPP dollars of 1993 had been updated in terms of inflation, the value of the line for 2005 would have been 1.45 DPP dollars per day. As, according to the World Bank, the first effect dominates the second, there was an increasing incidence of poverty overall.