This takes $3$ minutes per customer because several forms must be printed from the computer and signed by the customer. Finally, the customer visits one of $3$ license processing stations where the customer$$s picture is taken and the license is printed. This final step takes $12$ minutes per customer.

Assuming unlimited demand, what is the flow rate of the process in customers per hour?

Note: Round to nearest integer.

Assuming unlimited demand, what would the new flow rate be if the center added one server to the bottleneck resource?

Note: Round your answer to $2$ decimal places.