By 2025, over 600 million will be of retirement age, as opposed to approximately 200 million now.
The number of people of working age, currently about 850 million, will decline to about 500 million.
By 2040, it will be about 1 billion to 350 million.
Within the next 30 years, China will likely euthanize several hundred million of their elderly because the one child policy has left them with no workforce to support them and precious few grandchildren to care about them and fight for them.
It will be called the “Great Wall Patriotic Fertilizer Program.”
Of course there may be food shortages there by 2025 so plans might change before then. Pass some grandpa around the table, Ching....