At the programme launch, Bombardier had forecast 315 annual deliveries from 2008 to 2027 for 100- to 150-seat airliners, but in the first 10.5 years, the six models available (B737-700, A318/A319, CS100/CS300 and E195) averaged fewer than 80 per year. Production was set to ramp from seven CSeries deliveries in 2016 to 30–35 aircraft in 2017 after Pratt & Whitney PW1000G supply and start issues are resolved. Production could increase to 90–120 aircraft per year by 2020. The CSeries delivery goal for 2017 was revised to 20–22, due to Pratt & Whitney delivery delays, but only 17 deliveries were completed in the year.