The data gap in global development

April 2015

Global poverty estimates may be out by millions. These infographics explore the data gaps we need to fill to measure progress on the Sustainable Development Goals after 2015.


  • Infographic one was amended on 29/05/2015 to include the estimate and upper estimate of maternal deaths, and to remove lower estimate, with the text amended accordingly.
  • Infographic two was updated on 29/05/2015 to focus on a lower estimate of the extent to which poverty may be underestimated based on those missing from household surveys.
  • Infographic three was updated on 29/05/2015 to reflect a longer time window and availability of two estimates necessary to record trends.