About 712 million people live in Europe.
The Benelux accounts for about 27 million people.
Other European countries listed by VGChartz seperately:
United Kingdom: 61 million
France: 64 million
Germany: 82 million
Spain: 45 million
Italy: 59 million
Scandinavia: 19 million (if including Iceland and Finland about 25 million)
So "other Europe" on VGChartz probably represents about 376 million people of which the Benelux accounts for about 7% of the 'other Europe' population.
Some strong PS3 countries in 'other Europe' includes Ireland, Portugal, Poland, Austria and Switzerland.
I would wish the "other Europe" section would get a better description so to better understand what's covered and included within what figures.