Thanks for reaching out on Imperva forum.
We might not have historical data for each application, but here's a quick way to check live server group traffic. Just follow these steps:
Don't forget to replace "ServerGroupName" with the actual name of your server group. (We have folders in that directory with server group names)
Hope this helps!
This thread is a few months old, but we have customers who have implemented multiple different solutions to track what you're asking for. Some of the solutions implemented that I recall are:
May I ask you, though, what's the objective? What are you trying to accomplish with the data?