[chrisgarand]

This is accurate. Here's an example of multi vs single family construction stats: https://www150.statcan.gc.ca/n1/en/daily-quotidien/220509/dq...

From the values of each, you can tell that multi-family units are a larger portion of residential construction. How much larger would require more research as on a per unit basis, multi-family units are cheaper per family than a single-family unit.

Essentially, manufactured home in this case, even if they were 50% of single-family home construction, would be less than 25% of total family units constructed (single-family units + (singe units being construction in multi-family buildings).