Quoted from Blake:As for stern I would think there is a very strong title output that you could collaborate [collate?] with a timeline and get a good idea.
Bear in mind that Stern Pinball has built up their business in accessories and collateral products greatly over the past 3 years. The count of machines produced is just one component of their growth. Also, they do contract manufacturing of games for other "manufacturers" of coin-op machines, though I suspect that part of the business has shrunk.
.................David Marston