“However, due to its large size and sustained low level of fertility, China is also likely to record the largest population decline of any country through the end of the century (786 million people). By 2100, China is projected to have lost more than a half of its current population and to have returned to a population size comparable to that recorded in the late 1950s (50 per cent probability).”

Responding to a question on the significantly low population projection for China, Director of the Population Division at UN DESA John Wilmoth said that “it really relates to the level of fertility that’s observed currently in China. The current number is right around one birth per woman on average over a lifetime.”

“Given that you need 2.1 births to maintain the current population without migration, if fertility levels remain at such a low level, even if they come up slightly, any fertility level if it’s below two, or especially below 1.8 or below 1.5, you’re really getting into low levels of fertility and it produces a long run decline that’s quite significant. And that’s true for China. It’s true for some other countries in this analysis,” Wilmoth said.