I recall the stats being 6% of permits over time have been awarded to non-residents, on the first time I floated it in 2012. The permit holder was a life-long MT resident who had a high number of ALS points. It would be interesting to get the actual data from FWP, and given that my daughter is a Game Warden, I'll look into it. Might not want to hear the truth though, right?
I applied for an "off-peak" permit for 10/2 this year and got it, and when I arrived at Camp Baker it was self-reservations, no Ranger there. I could have saved the $10 but it goes to Parks year-round so it's worth it whether I get a permit or not IMHO.
In 2019, the number of total applications was down about 4.4% from previous years.