Instead of being in prison, they were dying out off hunger and concentration camps... There are idiots supporting US, and hypocrites supporting china...
1970 was during the cultural revolution. In that year, the world population was 3.68 billion, and the population if China was just shy of 830 million - China had 22% of the world's population, so if they held (only) 20% of the world's prisoners, they'd have a lower than average incarceration rate.
The same is not true for the US today, we have less than 5% of the world's population today.
...I understand what per-100,000 means, but I also understand that not all groups of 100,000 people are the same; removing a large sub-population of people that doesn’t exactly match the overall population’s average will result in a change to the overall population average.
If you have a total population (T), and you are measuring the rate of an event (E), then E / T gives your average event rate for the total population, which you can then normalize to a per-X number. For example: T = 1000 people E = 10 incarcerations. 10 / 1000 = .01, normalized to per 100 capita would be 1 per 100 people on average, from the total population.
If you have a sub-demographic in that population (Ts), and it has a different rate of an event (Es) then its rate is also Es / Ts. For example: Ts = 100 poor-people Es = 5 incarcerations. 5 / 100 = .05, normalized to a per 100 capita would be 5 people per 100 on average, for that sub-population.
If you suddenly remove that sub-population, what happens to the rate of the overall population? That’s easy to calculate: (E - Es) / (T - Ts) (10 - 5) / (1000 - 100) = 5 / 900 = .0055, normalized to a per 100 capita would be .55.
Suggesting that a sub-demographic doesn’t perfectly match the per-capita average of an entire population and that removing them would change the overall per-capita rate isn’t nonsense.