[OlleTO]

I think presenting it like this is misleading since the definition of homelessness is different per country.

Breaking down the Swedish stats, of the reported 34000, the source says:

"4 500 people were in acute homelessness, of which 280 were sleeping rough. 5 600 people received institutional care or lived in different forms of category housing. 13 900 people lived in long-term housing solutions (the secondary housing market), provided by the social services in the municipalities. 6 800 persons lived in short-term insecure housing solutions that they had organized themselves."

Unfortunately the original source isn't archived so I haven't checked the exact definitions used here.

For the US numbers, we have:

"On a single night in 2018, roughly 553,000 people were experiencing homelessness in the United States. About two-thirds (65%) were staying in sheltered locations—emergency shelters or transitional housing programs—and about one-third (35%) were in unsheltered locations such as on the street"

I'll assume you'll get similar discrepancies for all of the other countries.