What is the ESRA (EUROCONTROL Statistical Reference Area)?

The EUROCONTROL Statistical Reference Area (ESRA), is designed to include as much as possible of the ECAC area for which data are available from a range of sources within the Agency (CRCO, CFMU and STATFOR). It is used for high-level reports from the Agency, when referring to 'total Europe'. The ESRA will change only slowly with time; a region will be added to the ESRA only when there is a full year's data from all sources, so that growth calculations are possible. The current ESRA is really 'ESRA 2008'.