In the upcoming new year Oscorp Industries is thinking of increasing the salary of its 30 employees based on their lengths of service and with such being the case, Oscorp came up with a list of the 30 employees' lengths of service in years as follows:5, 8, 15, 43, 7, 5, 9, 6, 22, 29, 31, 38, 32, 21, 18, 24, 28, 6, 3, 8, 25, 16, 34, 18, 8, 25, 15, 31, 16, 18.

The Mean is: (use only one decimal point)