The statistics were made available earlier this year, and can be found at
https://www.gov.uk/government/upload...SP7Apr15-O.pdf
Cadet numbers fell slightly 2014->2015.
ATC 2013 33,490
ATC 2014 33,590
ATC 2015 33,370
The real drop is in staff numbers, which have fallen more heavily.
ATC CFAV 2013 12,080
ATC CFAV 2014 10,430
ATC CFAV 2015 9,900