Question Statistics

I have been tasked with creating an LMS module built from a presentation that my employer has been using for years. Currently test question metrics are tracked using forms in SharePoint.

Building the WBT is no problem, but I am at loss on how to collate test result data. A requirement is that the department can see which questions are missed the most so they can refine training. Is there a way to collect these statistics? 

EDIT:

Just to clarify, The training in question is hosted on a Closed/Secure Network. I cannot access Articulate Online.

The LMS I have to interact with is not ... traditional? ... is the best way to describe it? It is more of a custom built add-on to other tracking software we use. Its takes months of back and forth with the vendor to get anything done with it and then they charge the organization to fix their substandard product.

I really just need to know how to access the test result information programmatically so I can store it in an array and export it.