Semantics
PUBLIC ENEMY #1
NHL'ers during the 12-13 season that played in Switzerland.
Depends what your criteria is when you claim "not many players". Regardless 2012-13 is not the same year as 2015-16.
Is that really all? If so, wow, I thought there'd be a lot more. That's only 18 players / 12 teams, or 1.5 NHL player per team. That's a really small difference in the quality of competition, especially since they can only dress four foreign players (meaning the NHLers didn't push out the worst players on the team).
That makes Matthews' numbers even more impressive.