Impossible to say because Stern don't publish production numbers.
Going on the number of games available these days - Terminator 3 or Striker Extreme would be my guess.
?
why would you say those two titles?
TSPP, ACDC, Tron, Spiderman, LOTR, Stern has sold enough of these titles to run them through production multiple times
I would think that both T3 and Striker Extreme would have been one run and done
Easy - These games are the most commonly imported games into Australia. So that suggests to me that there were a lot of these games produced. It is rare to see a LOTR. TSPP are not that common, but AC/Dc Pro machines appeared on lists in early 2013. Operators MUST have bought a lot of Striker Extremes, T3 and Playboys. Could it be that there was a large volume of games ? Are the LOTRs still on location ?