Your statistic must be for undergrads, where the situation is very different. In STEM grad school, no more than half the people are from the US, and it could e

Your statistic must be for undergrads, where the situation is very different. In STEM grad school, no more than half the people are from the US, and it could easily be as low as 25%, depending where you are. Actually, the very source you cited agrees, roughly: > international students earned nearly half of all Master’s and Doctor’s STEM degrees awarded in 2019 I suspect that the number "5%" is also too low even at the undergrad level, if you restrict attention to, say, the top 20 universities.