How has the ratio of mental and physical labor changed in the history of mankind?

In the history of mankind, the proportion of the physical ore has gradually decreased and the proportion of the mental has increased. Primitive people for the most part were engaged in manual labor for the sake of survival: from making fire and hunting to moving around. But as soon as any discovery or invention appeared, the life of people was facilitated in the physical plane. For example, a wheel, a steam engine, electricity. In an industrial society, the physical labor of the worker was supplemented by the work of machines. And modern society is informational, since it is knowledge and new technologies that ensure progress in the economy and determine the standard of living of people.