The world’s largest database to track retractions, collated by the media organization Retraction Watch, does not yet include all of 2023’s withdrawn papers. To analyse trends, Nature combined the roughly 45,000 retractions detailed in that data set — which in September was acquired for public distribution by Crossref, a non-profit organization that indexes publishing data — with another 5,000 retractions from Hindawi and other publishers, with the aid of the Dimensions database.

I guess that's the source.

The number of retractions issued for research articles in 2023 has passed 10,000 — smashing annual records — as publishers struggle to clean up a slew of sham papers and peer-review fraud. Among large research-producing nations, Saudi Arabia, Pakistan, Russia and China have the highest retraction rates over the past two decades, a Nature analysis has found.

So the usual suspects are doubling down on cheating and plagiarizing.