> 70% from San Francisco
22% from rest of California
8% from out of state
I think the source is from this study: https://hsh.sfgov.org/wp-content/uploads/2020/01/FINAL-PIT-R...
https://news.ycombinator.com/item?id=28333755
https://news.ycombinator.com/item?id=28974050