Components of non-operating retirement costs Years Ended % Change December 28, 2014 December 29, 2013 December 30, 2012 14-13 13-12 Pension: Interest cost $ 94,897 $ 87,817 $ 106,748 Expected return on plan assets (113,839) (124,250) (118,551) Amortization and other costs 31,338 39,331 37,812 Non-operating pension costs 12,396 2,898 26,009 * (88.9) Other postretirement benefits: Interest cost 3,722 4,101 4,985 Amortization and other costs 7,299 4,440 3,328 Non-operating other postretirement benefits costs 11,021 8,541 8,313 29.0 2.7 Expenses associated with multiemployer pension plan withdrawal obligations 13,280 9,352 10,195 Total non-operating retirement costs $ 36,697 $ 20,791 $ 44,517 76.5 (53.3) * Represents an increase in excess of 100%. THE NEW YORK TIMES COMPANY – P. 39