A huge problem, when trying to answer this question, is civilianization/contractorisation. An example:
In 2003, 84 Sqn (RAF Akrotiri), replaced it's 4 Wessex Acft with 4 Bell 412 Acft.
The 58 Military engineers/line'ies were replaced with 5 civilians.
It killed the Sqn. The ethos and 'magic' died overnight. Please do not misunderstand - the civvies hired were ALL excellent, thoroughy professional and the sort of guys you wanted working on 'your' aircraft (all ex-RAF...), but it was NOT any longer an RAF Sqn.
Numbers don't tell the whole story.