Count orders per user

[dnlvsci]

Hello All!

I wan't to extend the user view page in the backend (administrator/index.php?option=com_virtuemart&view=user). Now you can see the following datas: Username, Name, E-mail, Group, Usergroup and ID. Now I want to see how many times ordered my users (only registered users) in my shop. If someone help me help the community because I want to share the solution and I want to Implement the Core VM2...

I hope you can help me Thx