Quoted from drsfmd:Not including vault editions...
2018= 2. 3 if we include Supreme.
2017= 3.
2016= 2. 3 if we include Pabst Can Crusher.
2015= 4.
2014= 2.
By comparison, in the late 60s and early 70s, Bally added a new machine to the lineup on average every 6 weeks. Hell, even in the darkest days before the doors closed, B/W was putting out more new titles per year than Stern is now.
2018 - 5 - Beatles, Deadpool, Iron Maiden, Supreme, and Primus