I really can't find out this. After all, those statistics are generally the statistics of the number of papers included in world-class regular journals, but different countries have their own national journals, so they cannot be counted. However, according to statistics, in 1998, Chinese researchers published about 20,000 scientific research papers, and by 2008, this number increased sharply to 1 12000; In the same period, the number of papers by American researchers increased from 265,000 to 340,000. It should be possible to roughly infer the data in the world.