Not later than September 30 of each year, the Inspector General of the Department shall determine, and the Secretary shall publish in the Federal Register, at a minimum, the five clinical occupations and the five nonclinical occupations of personnel of this title of the Department covered under
section 7401 of this title for which there are the largest staffing shortages with respect to each medical center of the Department, as calculated over the five-year period preceding the determination.