One can run activity reports using Conga Composer setup tab. These reports demonstrate the total usage and Conga products that are utilized on summary level and a granular level.
This can be accessed from the Conga Composer Setup tab the plus sign in Salesforce, or from a conga composer window. In a Composer window, you can click ‘Tools and Settings’ in the top right, then ‘Setup’:
From here you can explore the Recent Activity Tab and specify the time frame desired. Conga will then run a comprehensive activity report showing all of your merges within that time frame:
You can then analyze the data on a summary level by user, or look at the raw data containing each individual merge process and the product used.