Beware: Poverty lines are often set as a percentage of the per capita GDP. So, in real terms, if the average buying power increase did not outpace the buying po

Beware: Poverty lines are often set as a percentage of the per capita GDP. So, in real terms, if the average buying power increase did not outpace the buying power increase of the richest few, poverty could increase, even as people are able to afford more. The world bank data that you linked to seems to be using a relative poverty line.