Notes to consolidated financial statements  September 27, 2014 and September 28, 2013 (Millions of dollars, unless otherwise indicated) T otal cash payments for employee benefits, consisting of cash contributed by the Corporation to its funded pension plans  and cash payments directly to beneficiaries for its unfunded other benefit plans, amounted to $ 45.6 in  2014 ($ 46.0  in  2013 ).  The Corporation plans to contribute $44.6 to the defined benefit plans during the next fiscal year and $26.0 to  multi-employer  plans. W eighted  average  duration  of  defined  benefit  obligations  was  16.4 years. The  most recent actuarial valuations for funding purposes in respect of the Corporation's pension plans were performed  on various dates between December 201 1 and December 2013. The next valuations will be performed between  December 2014 and  December 2016. Plan assets, primarily based on quoted market prices in an active market, held in trust and their weighted average  allocation as  at the measurement dates were as follows: Pension plan assets included shares issued by the Corporation with a fair value of $ 6.1  as at September 27, 2014  ($ 5.9 as at September 28, 2013). The  principal  actuarial  assumptions  used in  determining  the  defined  benefit  obligation  were the  following: T o determine the most suitable discount rate, management considers the interest rates for high-quality bonds issued by  entities operating in Canada with cash flows that match the timing and amount of expected benefit payments. The  mortality  rate is based on available mortality tables. Projected inflation rates are taken into account in establishing future  wage and  pension  increases. A 1% change in the discount rate, without ef fect  of any modifications to other assumptions, would have the following  ef fects: The  assumed annual health care cost trend rate per participant was set at 6.5%. Under the assumption used, this rate  should gradually decline to 4.5 %  in 2034 and remain at that level thereafter . A  1% change in this rate would have the  following ef fects: - 77 - (Millions of dollars) 1% increase 1% decrease Effect on defined benefit obligation  2.2 (1.9) Pension plans Other plans (en millions de dollars) 1% increase 1% decrease  1% increase 1% decrease Effect on defined benefit obligation  (139.1) 179.4 (3.3) 3.9 2014  2013 (Percentage) Pension plans Other plans Pension plans Other plans Discount rate  4.20 4.20 4.85 4.85 Rate of compensation increase  3.0 3.0 3.0 3.0 Mortality table  CPM2014Priv CPM2014Priv UP-94  Generational UP-94  Generational Asset categories (Percentage) 2014  2013 Shares 53  56 Bonds 40  35 Others 7  9