Russian carriers took delivery of fewer than 60 aircraft in 2015, less than half of the approximately 123 aircraft delivered per year during 2008-2014, according to Russia’s State Scientific Research Institute of Civil Aviation.

According to the organization, 22.1% of aircraft delivered in 2013-2015 were Boeing 737-800s; 15.4% were Airbus A320s; 12.9% were A321s and 7.1% were A319s. Sukhoi Superjet 100 (SSJ100) deliveries made up 14.2% of total aircraft deliveries from 2013-2015.

Deliveries of Russian-assembled aircraft have not exceeded 20 aircraft per year.

Russian airlines’ passenger fleet includes 547 widebodies and narrowbodies, of which 82 are Russian-built. Regional aircraft includes 206, comprising 125 Soviet-era aircraft, five Antonov An-148s and 76 Western-built aircraft.

According to the study, Russian airlines will need up to 1,800-2,200 aircraft through 2034 to replace older aircraft and meet demand. Of that number, 390-540 are widebodies, 1,050-2,070 are narrowbodies, and 370-410 are regional aircraft.

The institute said if the downward trend is short-lived, Russia’s passenger turnover could grow 2.2 to 2.9 times over 2014, when it reached 241.4 billion RPKs.