Ok, I understand that you do not wish to participate in writing the section. My current plan is to include as many different estimates as I can find, as well as whatever criticisms I can find of those estimates. Ideally, each source should get one paragraph describing its estimates, followed by a similarly-sized paragraph of criticism (if such criticism can be found). The section will not try to summarize the various estimates into a single range, but will present them each separately. Is this acceptable?