2020年世界最貧窮國家（參考資料網址）

2021年度最貧窮國家（以2020 GNI 進行排行）：
https://worldpopulationreview.com/country-rankings/poorest-countries-in-the-world

人均寿命：
https://en.wikipedia.org/wiki/List_of_countries_by_life_expectancy#List_by_the_World_Health_Organization_(2020)

人类发展指数：
http://hdr.undp.org/en/content/latest-human-development-index-ranking?utm_source=EN&utm_medium=GSR&utm_content=US_UNDP_PaidSearch_Brand_English&utm_campaign=CENTRAL&c_src=CENTRAL&c_src2=GSR&gclid=Cj0KCQiAosmPBhCPARIsAHOen-NxrFyoTZyqKABLCoXpfnf7u_L7lpmrZqVhxpHs-KBZSv6aWdX7bmIaAuAhEALw_wcB

贫困率：
https://worldpopulationreview.com/country-rankings/poverty-rate-by-country

文盲率
https://worldpopulationreview.com/country-rankings/literacy-rate-by-country