How to find which SLA Rules have been used by create accounting process and when it was last used ?

Summary:

We are trying to find which SLA rules have been used and which of the rules have not been used / never used during create accounting process in the last 1 year. How do we achieve this.

The Subledger Accounting Method Setups Report out of the box provides the rules, but does not provide details of when a specific rule was last used.

Need help finding this.

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):