VIM Approval Statistic

Hi Experts,

we are using the SAP Vendor Invoice Management by OpenText (VIM) in Version 7.50 PL7.
I was looking for a statistic report or table where i can find the names of the approver and the corresponding document-IDs. We need to know which user approved how much invoices.

I found table /OPT/VIM_1LOG but there are only the entrys of the process history. i need the infos of the approval history. Multiple tables in which I can merge the data would also not be a problem.

Thanks in advance