Issues in a status at a specific time per user

I have a table that shows me the sum of issue who are transitioned into a specific status by user in a defined time. see screenshot.

Now I want another colum which gives my the sum of issues who are in status “in progress” before the selected time per user.

With the example of the screenshot:
For the “HD MA” user group are 50 issues in status “in progress” before June 2019. Then I can expand and see the values for every user of the “HD MA” group.

How can I achive this?