You can create charts to view the following:
1. Number of cases handled
2. Number of open cases
3. Number of closed cases
4. Case breakdown by type
5. Average Response Time for Cases
6. Average Resolution Time for Cases
The above list is not exhaustive but should give you some ideas.
Please mark it as CORRECT and HELPFUL if it really helped to solve your case so that it can help others as well.
Night time here, will have a look tomorrow.