What is the difference between total number of officers and clerks?

Total number of officers = 2000 + 15000 + 17000 + 3500 + 14900 + 11360 + 9000 = 72760
Total number of clerk = 5000 + 17000 + 19500 + 20000 + 17650 + 15300 + 11000 = 105450
Their difference = 105450 - 72760 = 32690