I'm not entirely sure why you're getting downvoted. I wasn't able to find a source for the data but it is probably new vehicle registrations. Europe here seems to include Norway, Sweden, Finland, Iceland, Switzerland.

Sweden, Finland and Iceland would be part of any definition of Europe? They're all EU countries, and (irrelevant to that) are now all NATO members too.

Switzerland is not but its meager population can hardly significantly skew the sales stats

Why wouldn't it?

Typically European Union vs Europe.

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they’ll get included again if they order a few humanoid robots that will be shipping by 2078