This was a problem with government owned Volts, they reimbursed for gas as this was already happening for the rest of the ICE fleet but had no way to reimburse for charging. Would not be surprised if this trend is the same for many company fleets too. Fix that and you would probably see similar numbers to private ownership.
Same here, and I am hoping that as battery density increases I may be able to extend the range on mine when the car gets old enough for a rebuild.