Smil — “2020 the average annual per capita energy supply…”
Source: How the World Really Works: The Science Behind How We Got Here and Where We’re Going — Vaclav Smil
Book page: smil-how-the-world-really-works
From: How the World Really Works — Quotes
2020 the average annual per capita energy supply of about 40 percent of the world’s population (3.1 billion people, which includes nearly all people in sub-Saharan Africa) was no higher than the rate achieved in both Germany and France in 1860!