Rational Team Concert

Hello,
So i have been trying to generate a report or a file from RTC depicting the usage of RTC (creating and modifying tasks) on a monthly basis. I have used the query and used conditions to generate it but the problem is that if 2-3 people updated the same task- it is only being reflected as the task modified by one person.
Isn't there any way via which we can publish a report/file that shows all modifications and the modifications made by which user in RTC?

Thank you!