How to deal with CRD IV submissions for different years for same banking organisation?

[StephenAbbott]

In the following pipeline folder, there are individual sub-folders for each banking organisation whose CRD IV data has been uploaded:
https://github.com/okfn/datapackage_pipelines_od4tj/tree/master/datapackage_pipelines_od4tj/pipelines/crd-iv

In each of those folders, there is a PDF and a YAML file relating to a specific annual report from a specific year for that banking organisation.

However, CRD IV data should now have been released by thousands of banking organisations for 2014/2015/2016. How best should we structure submissions in future to make sure our schema can deal with entries from multiple years for organisations?