An autist on 4chan sperged out a lot a calculations on sulfer emissions from Wuhan, based on how large the average chinaman is, and how much a body would emit from cremation. Said about half the population was wiped out.
This also backs up what another autist said in regards to telecommunications data showing how many phone accounts were canceled. Phone numbers in China are linked to your government ID(Think SS#).
Point is, everyone needs data from China to model these predictions, but China always lies about the numbers.