However, a much larger number of data compilers are involved in distribution costs and the reporting of data is considered to be more difficult in some Member States.
Mar sin féin, tá líon i bhfad níos mó tiomsaitheoirí sonraí páirteach i gcostais dáileacháin agus meastar go bhfuil an tuairisciú sonraí níos deacra i mBallstáit áirithe.