Financial Information
11. SELF-INSURANCE RESERVE FOR LOSSES AND LOSS ADJUSTMENT EXPENSES
The following table summarizes the activity in our self-insurance reserve for losses and loss adjustment expenses for the last two fiscal years:
Our provision for incurred losses relating to the current year increased by $8 million over 2012 primarily due to an increase in medical benefit costs and growth in business activity. Our provision for incurred losses relating to prior years increased by $8 million in 2013 and decreased by $11 million in 2012 as a result of changes in estimates from insured events from prior years due to changes in underwriting experience and frequency and severity trends. Our year-end 2013 self-insurance reserve of $362 million consisted of a current portion of $120 million and long-term portion of $242 million. Our year-end 2012 self-insurance reserve of $342 million consisted of a current portion of $103 million and long-term portion of $239 million.