* Data for Border Patrol staffing (Source 1) come from the federal data system that
records and tracks the federal civilian work force. However, after fiscal year 2003, the Office of Personnel Management began
withholding information on about 900,000 civilian employees including Border Patrol Agents. The issue is now under litigation.
See http://trac.syr.edu/foia/opm/20051206/ for more information.
** Data for Border Patrol staffing (Source 2) come from the Border Patrol Public Affairs Office.