How about adding in inflation, are process rising with inflation or not?
Separating casualty from non-casualty would be interesting too.
As regards unit naming: The Register has 13,921 records of medals for sale - over 98% are QSAs & KSAs, the 2% are medals from a group that should include a QSA or KSA.
From these records I have collected over 1100 unit names used on medals. These can be harvested from DNWs data by chopping the string up to identify the unit. What format do you have the data in - Excel or a database?