I don't know if this has been covered, but there is a doctoral candidate compiling stats for missing Native American and Indiginous Canadian women.
The interesting thing is that there was a bill called Savannah's Act introduced by Senator Heidi Heitkamp (and also Tester, Franken, Warren, Heinrich, and Merkley) on 5 October 2017, and last action on it was taken on 25 October 2017 (three days before Q's first post).
The purpose of the bill was:
>To direct the Attorney General to review, revise, and develop law enforcement and justice protocols appropriate to address missing and murdered Indians, and for other purposes.
>This bill requires the Department of Justice (DOJ) to update the online data entry format for federal databases relevant to cases of missing and murdered Indians to include a new data field for users to input the victim's tribal enrollment information or affiliation.
I'm guessing there hasn't been any "action" on this bill in the because it is being handled re: the human trafficking crackdown.
https:// www.npr.org/2018/07/21/627567789/doctoral-student-compiles-database-of-indigenous-women-who-ve-gone-missing?utm_source=twitter.com&utm_medium=social&utm_campaign=npr&utm_term=nprnews&utm_content=20180722
https:// www.congress.gov/bill/115th-congress/senate-bill/1942/text