Where do the metered usages on various utility reports come from?

Where do the metered usages on various utility reports come from?

Utility Management reports can pull their usage from either the Transaction record or the Meter Activity record, depending on the report.  In general, these will be the same, though in some cases they can vary (for example, if adjustments were made to correct prior period readings and usages).  Also note that there can be differences on the Transaction record between Quantity and Quantity Billed in some cases, and different reports pull 

The following table summarizes where the metered usage is pulling from for the various reports:

Report Name
Transaction - Quantity Billed
Transaction - Quantity
Meter Activity
Consumption Analysis
Yes (depending on "Use" option selected)
Yes (depending on "Use" option selected)
No
Billing and Usage Summary
Yes
No
No
Rate Summary
Yes
No
No
Meter Activity
No
No
Yes
Meter Consumption Report
No
No
Yes
Meter Reading Proof ReportNo
No
Yes
Meter Reading Exception Report
No
No
Yes