What % of Columbia Students Have Jewish Surnames?

There have been big changes since 2004.

As I reported a couple of months ago, the Harvard Jewish Alumni Alliance recently estimated a drop at Harvard from 20-25% Jewish in the 1980s to 7% Jewish lately:

Now, Werner Zagrebbi did a surname analysis of students at Columbia U., and discovered that Jewish surnames declined from 28% in 1982 …

Paywall here.