GDP per capita$1,000$10,000$100,000$2,000$5,000$20,000$50,000DTP3(%ofone-year-oldsimmunized)ChinaChinaIndiaIndiaUnited StatesUnited StatesIndonesiaIndonesiaNigeriaNigeriaRussiaRussiaJapanJapanEthiopiaEthiopiaPhilippinesPhilippinesSudanSudanAfghanistanAfghanistanNigerNigerBurundiBurundiLibyaLibyaAfricaAsiaEuropeNorth AmericaOceaniaSouth America1.4B1.4B600M600MDots sized byPopulation(historicalestimates)