Reporting on total number of employees that completed a subset of learning items

Summary:

I have a requirement to create a summary report that includes how many employees have completed a subset of all of the learning items included in the filter of the report. We produce a quarterly newsletter (vol 1, vol 2, etc...) that includes 6 learning courses. I created an analysis that includes all of the learning items from all of the published volumes. I would like to count which employees have completed all of the learning items from a specific volume of the newsletter.

My table consists of the following and I provided some examples. In the example below, I need a summary that shows how many employees completed all of the learning items in a specific volume (i.e. Vol 1 of the Newsletter had 2 employees complete all of the learning items, Vol 2 of the Newsletter had 1 employee complete all of the learning items, etc...)