According to my anecdotal source, Sweden (and other European countries) do not allow arranged adoptions. If you want to adopt a Swedish child, you put your name on the list and get whomever comes up next. This was one of the reasons (besides lack of available Swedish children) my friend chose to adopt in the US. The birth mother was a European friend of hers, and neither Sweden nor her friend’s country would allow them to arrange the specific adoption. The US allows this, so they both temporarily moved here for that purpose. (Baby born in US)
My point being, the Swedish adoptions probably were truly “random” in that respect.