1000 cottage owners = universal (or ultimate set, depending on what book you're using)
570 owned their cottages with no mortgage and also owned cars = | |
340 owned mortgaged cottages, owned cars, and had electricity = | |
189 had neither mortgages nor cars nor electricity = | |
760 owned cars = | |
That should get you started.
P.S. ehpoc, did you get my PM?