Thank you.
One of the things I did when I was looking at official languages communities in minority situations was to look at the age structure of speakers, but I broke it down a bit differently. I didn't simply work out the average age of the speaker. I apologize for the fact that I have to show a picture from this book. At the bottom here, you can see this is a robust francophone community in Quebec. What you're seeing is an age tree where children of all ages, adults as well, tend to retain a high percentage of using that language.
When you look at francophone communities in western Canada, you see something very different. It's primarily people in the highest age range, over age 65, and those who are under age five who are unilingual speakers. What that allowed me to do was determine whether it's only small children who only talk with their mom, and very old people who only are in a home environment who have the use of the language.
Do you track that sort of thing for indigenous languages?