https://ourworldindata.org/grapher/number-of-state-based-conflicts
https://ourworldindata.org/grapher/share-of-population-in-extreme-poverty-2011-ppp?tab=chart&country=~OWID_WRL
https://ourworldindata.org/grapher/voter-turnout-rate-by-age-usa
https://ourworldindata.org/grapher/national-average-learning-outcomes-vs-government-expenditure-per-primary-student