quite new to OTRS usage and completely new to this community forum - so "hello" first of all!

I need some help. I want to have an SQL to get the usage of response templates for tickets.
In detail I want to know which agent was using which response template how often in a given date range "x"
I even would like to filter it even more by specifying a list of 5 or 10 specific response template IDs that I am interested in.
I want to have the agent ID or name as a filter criteria to be able to run that SQL for a given agent and a given date range, e.g.: which response templates has agent "xyz" been using in the past 30 days.
I would not care in which tickets it was used actually.
Background: I want to know for month X if agent Y was using some very special response templates A, B and C.
Any idea? And help would be greatly appreciated....