Incentives (for western Governments) are strong to show population has grown as little as possible, because it reduces stats on (mostly illegal) immigration, and improves GDP-per capita. I think it is probably healthy to explore if these incentives leak into the data that Governments produce. Probably to some extent it does, to be frank, even if that extent is just not looking too closely at passive measurements like food purchase trends or similar.

> Incentives (for western Governments) are strong to show population has grown as little as possible

Well, for some people - there's a notable tranche of people who are sounding the alarm bells about the demographic problems of low birth rates and an aging population leading to ever-fewer workers being squeezed by an ever-growing cohort of retirees who are hoarding wealth and real estate.