Not sure about Canada but in the U.S. it's 30%. Just curious as it's seems contrary to the prevailing narrative out there...why would you assume it's a small fraction?
I find 30% quite low unless you count the ones that are purely economic and typically are doing things like sleeping in their car or other such things that aren't the typical picture of homelessness.
Technically, I was "homeless" for 7 months in my life--but it was a planned thing, at no point did I ever not have a roof at night, but a few of those nights it was a tent roof.
The people "sleeping on the streets" represent a small fraction of the homeless population. A big chunk (~40% in CA) live in their cars, and the majority are sleeping in shelters (~66% nationwide, which must be lower in CA).
Technically, I was "homeless" for 7 months in my life--but it was a planned thing, at no point did I ever not have a roof at night, but a few of those nights it was a tent roof.