According to The Truckers Report, the turnover rate for truckers is about 1 year, compared to a US national average of 4.4 years for all other industries.
Moreover, the average cost of truck driver turnover is $8,200 per truck driver, which includes recruitment advertising expenses, entry and exit administration, fixed asset costs of idle equipment, profit lost due to idle equipment, safety and regulatory expenses (drug testing, background checks), new truck driver orientation costs, and productivity loss.
The cost of turnover per truck driver is 3x the average cost for US employees, and that's not even taking into account the salary of the employee doing the hiring. You have to take time away from your business to find, source, interview, hire, and train someone. Conversely, you can pay a recruiting agency like Custom Trucker Recruiting to do that time-consuming work for you.