25 by wikipedia.. and:
The aircraft are based in Geneva and Zurich flying on trunk business routes like Amsterdam, Birmingham, Budapest, Dusseldorf, Frankfurt, Lisbon, London Heathrow, Luxembourg, Madrid, Manchester, Milan, Nice, Oslo, Paris CDG, Stuttgart, and even recently started flying the steep approach to London City, which would be a special trip to take for any first flight on the type.
This is from August.. no Rome/FCO.