Get Daily Usage: Repeat Question

Dear All, I am going to repeat my question because i not got the reply of my question which i asked before 3.5 Months ago. If any have the solution or idea then please reply. *Question: How can i make daily usage report with freeradius.* I got a idea earlier from the *freeradius user list, *But that fails on one problem. *Problem:* Say for example: if any user "XYZ" have a one accounting session with the acct-start-time = "2018-08-16 05:00:00" and acct-stop-time = " 2018-08-19 11:16:46". Ok. Means only one accounting session 3 days. So, in this example how can i calculate OR get the "2018-08-17" OR "2018-08-18" s' data usage of that "XYZ" user? Warm regards Imdadali Kadiwala