Each nation has its own rate of speakers. There are indicators of the vitality of the language for each community, and they don't apply to the entire nation.
The Innu nation has nine communities in Quebec and two in Labrador. I would say that in some communities that are remote from the major centres, the rates of language retention may vary between 70 and 90 per cent. That is an approximate picture of the situation for the Innu nation.
What is important to know is that a language can disappear completely in two or three generations, which is not very long.