Learning reporting - OTBI - Pulling details on in-progress self-paced training

Summary

What fields are available for in-progress self paced training?

Content

A consultant has developed a report for us, which I've helped by locating fields via test/prototype courses.

I am unable to find a field that shows the number of times the course has been launched. The closest I can find is 

Learning Events > Event > Attempt Event > Attempt Count

However, this shows 0 for the bulk of our courses - I assume it would only work in conjunction with a course that has a quiz, that only allows one attempt?  What similar fields are available please (number of times launched, last launch date etc.)?