Human numbers grew as the population after 1800

After 1800, human numbers grew as the population explosion took hold. It carried our entire population to 6 billion in October 1999. Population growth on a world scale accelerated from a rate of 0.2% per year between 1500 and 1800 to 0.6% per year between 1800 and 1900, 0.9% per year between 1900 and 1950, 1.9% per year between 1950 and 1975, and-in the first slowing of global rate of population growth--1.6% per year from 1975 to 2000.

Average rates of material output per capital that grew at perhaps 0.15% per year between 1500 and 1800 grew at perhaps 1.0% per year globally between 1800 and 1900 and have grown at an average pace of maybe 2.0% per year globally between 1900 and 2000.