|Source: RSA Heritage Index derived from PAS.|
I have been working through the data included in the RSA Heritage Index for Essex. The section on 'Museums, Archives, and Artefacts' includes an element 'Archaeological finds reported' derived from the Portable Antiquities Scheme. This presents just over 16,000 finds for the different parts of the county. (This is dwarfed by more than 60,000 finds reported for Suffolk.)
These finds contribute to the overall heritage score for each of these administrative districts in Essex (and other parts of the UK).