Am trying to generate some stats using servicedesk.  Basically am generating a report for all recieved requests, split in to categories going back through last year.  Am able to generate an Advanced Matrix report that displays a count of all the recieved requests.  However if a particular category has not been used for that particular week it is missed off of the report.  This is leading to a real nightmare of drag and drop to get teh tables aligned. 

 

Is there a way to force the report to display all categories irrespective of whether or not it has been recieved over that time frame?