The initial report was done in the early 2000s and I think they updated it in 2014, so it’s not that current but the biggest change was the foreign universities as eeyore points out, the National University in South Korea (162), Harvard (74), National Taiwan University (63), and University of Delhi (61) are the top 4. After Harvard for US colleges it’s Berkeley, Cornell, and Stanford in the research U’s and top-50 liberal arts colleges are Swarthmore, William and Mary, and Williams.
I couldn’t place the link cleanly, just google Stock and Siegfried 2014, if interested in more details. Anyway this is just for one major.