30 years ago they only had 6 million, Uighur population jumped over the past several decades, the growth rate is one of the highest in China. Even today they still enjoy twice as high as the birth rate of Han population. I only worry about the Korean Chinese, they have the lowest birth rate among all Chinese ethnic groups.Sudden drop in USA only amount to 2% from the previous growth
Sudden drop in Xinjiang on the other hand had it growth rate halved (50%), and this is from a population of less than 15 million.
this is extreme.