A list of performance statistics for the queue:
"Total customers": Total customers in simulation,
"Missed customers": Customers who never saw a server,
"Mean waiting time": The mean time each customer had to wait in queue for service,
"Mean response time": The mean time that each customer spends in the system (departure time - arrival time),
"Utilization factor": The ratio of available time for all servers and time all servers were used. It can be greater than one if a customer arrives near the end of a shift and keeps a server busy,
"Mean queue length": Average queue length, and
"Mean number of customers in system": Average number of customers in queue or currently being served.