Which jet airliner types have had the fewest accidents per million departures? Passenger jet transport is very safe, but are there any jet airliners with a lower recorded accident rate?

Edit:

number of accidents per se is of course never a good indicator since it will always rise over the years and with fleet size. Accidents per flying hour skews towards long distance aircraft, since not many accidents happen during cruise. The most objective comparison would be the rate of accidents per million departures of the type.
All newly developed types have zero number of accidents, at least immediately before the maiden flight. 

Hence the actual safety of the type cannot be derived just from the number of the accidents. The number of flights flown must also be taken into consideration. For instance, Concorde used to be the absolutely safe (zero accidents) for many years (1969 - 2000), then it became comparable to other planes just because of the only crash of the type.

This source contains the table that includes the number of airliners operating, not just the number of accidents. It is very incomplete but looks like Boeing 777 and ERJ 135/145 may not be a bad choice while Boeing 737 'Classic' does not look equally good. The safety of this type has been discussed separately.