Assistance with report query

I am wanting to run a report, per Owner, that shows the average ticket response times, over all tickets in the past year, and include a ticket count that they have been the owner of.

I can get one or the other currently.

My currently query will show a bar graph per department, for the past year, and a line chart of average response times.

SELECT AVG('Ticket Posts.Response Time') FROM 'Ticket Posts' WHERE 'Tickets.Creation Date' = monthrange(April 2015, April 2016) AND 'Tickets.Owner' =...

Assistance with report query