In the UK I doudt very much they would know how many folk have cpl/IR and MCC mainly because MCC isn't recorded and as such is just a tick in the box course which the person has to present a cert for.
As for the how many ATPL's issued it is already listed.
The stuff to me that would be interesting is.
1.Number of intial class 1 medicals.
2.Number of 14 theory passes complete
3. Number of CPL's issued
4. Number of intial multiengine IR's issued (not the current number of post license, the whole lot on one year)
5. Number of intial type ratings issued.
Would someone like to contact their MP and see ifthey can get them to extract such information?