Time sheets reporting

I need better reporting for my production hours.  We are a lawn maintenance company:  mowing and basic yard projects.  I would like a report that shows our work efficiency:  

• total time on each visit.  If we have 2 workers on a visit, and the visit took 30 minutes, the report would show a total of 60 minutes on that visit
• total time on visits for the day.  Same example, we have a 2-man crew, and they completed 10 visits.  Each visit took 30 minutes.  So:  30 x 2= 1 hour per visit.  10 visits x 1 hour per visit = 10 "billable hours".
• total time paid per day.  Same example:  both crew members clocked in at 8:00 and clocked out at 3:30.  This is 7.5 hours per worker.  7.5 x 2 workers = 15 labor hours.
• efficiency.  Same example:  10 billable hours/15 labor hours = 67% efficiency score (67% of the clocked hours were "billable")

I would use this report to compare our crews, and compare our routes.  I would also use it to project how many visits we can realistically schedule in a day.  And, I would use it for customer pricing.

I don't see any easy way to create this reporting in Jobber, even though all of the data is available.  Thoughts?