How much of that is due to outsourced production though?
2021 reversed this trend. Guess why?
I think you may be surprised here.
Regardless, you also probably aren't accounting for the well known https://en.wikipedia.org/wiki/Jevons_paradox that means you can't expect to reduce energy use through efficiency gains. Energy is too important to raising quality of life, people invariably find uses for it unless the cost goes.