@collegemomjam – there was another link within that article that gave this breakout for applications/admissions:
North Carolina 13,909 5,690 (40.9%)
Out-of-state 29,563 3,829 (13.0%)
Total** 43,472 9,519 (21.9%)
And remember, of course, that alumni get extra weight in the OOS category. I used to have the fall '17 breakout but must have thrown it away. The comparative number of OOS alumni is small, but IIRC the acceptance rate was something in the neighborhood of 40-50%, so I’d guess that non-alumni OOS acceptance rate is less than 12%.