Got it from Reddit (@TapedeckNinja)
SteamDB data over a longer period really hammers it home (I think):
June 12, 2016: 3,792 players
June 12, 2018: 23,029 players
March 28, 2016: 491,612 owners
March 28, 2018: 1,946,350 owners
At least on Steam there appear to be ~5-6x as many people playing the game now as there were just a couple of years ago.