Graph shows the number of items delivered each day by each company.
People like Trump want to get rid of The Post Office because they think that UPS and FedEx is better because they think it is more efficient but this graph shows that it is not true. From this article Neither Rain Nor Snow by Devin Leonard, it says
“People often talk about how the postal service is lumbering and inefficient compared with private sector competitors such as UPS and FedEx. But the USPS delivers more items in nine days than UPS does in a year”