Notes to consolidated financial statements  September 27, 2014 and September 28, 2013 (Millions of dollars, unless otherwise indicated) The  changes  in  present value  of  the  defined  benefit  obligation were  as follows: The present value of the defined benefit obligation may be reflected as follows: 2014  2013 (Percentage) Pension  plans Other  plans Pension  plans Other  plans Active plan participants  61 74 62 74 Deferred plan participants  4 — 4 — Retirees 35 26 34 26 2014 2013 (Restated - note 3) Pension  plans Other  plans Pension  plans Other  plans Balance – beginning of year  818.8 38.3 847.4 41.5 Participant contributions  4.8 — 4.3 — Benefits paid  (37.8) (3.5) (41.6) (3.7) Items in net earnings Current service cost  31.5 2.1 36.3 2.3 Interest cost  40.4 1.9 36.9 1.8 Plan amendments  0.5 1.0 — — Actuarial gains  — — — (0.9) 72.4  5.0  73.2 3.2 Items in comprehensive income Actuarial losses (gains) from demographic assumptions  30.7 (2.0) 0.1 (1.5) Actuarial losses (gains) from financial assumptions  91.5 2.1 (78.4) (1.5) Adjustments due to experience  0.8 (0.3) 13.8 0.3 123.0  (0.2)  (64.5) (2.7) Balance – end of year  981.2 39.6 818.8 38.3 - 74 -