What is the meaning of Affluent?

A new Amnesty International and Oxfam report finds 9 out of 10 people in poor countries likely won't get Covid-19 vaccines in 2021, while wealthier nations are securing enough to immunize populations nearly 3 times over. https://bloom.bg/3n8Td6p | Bloomberg

Most countries have slowly (or sometimes rapidly) grown wealthier with time. But there are some sad exceptions. | Sunday Roast