Workflow Status for the whole year

We have a client that does a lot of prior period adjustments so they go through the workflow for the whole year a few times. We have automation set up to assist, however they would like a report that shows the workflow status for the whole year and not just one period. I know the application reports are out of the bos that shows a particular month throught method queries. That works great but has anyone ever created one that would pull the whole year? I was looking for a sub variable that does that but cant seem to find one or has anyone done anything different. 

Much Appreciated!