Most of these statistics are collected by the Civil Aviation Authority (CAA) and other organisations external to the department.
All the results in the aviation statistics series are outside the scope of National Statistics. The majority of tables are updated annually but data on public attitudes to aviation are collected and published on an ad hoc basis.
All of the statistics published in this series are official statistics. The department’s view is that all statistics in this series, which are not designated as national statistics, are robust and have been produced to a suitable standard.