The revolving credit facility with a maximum of $ 600.0  bears interest at rates that fluctuate with changes in bankers'  acceptance  rates and is unsecured. As at September 27, 2014, the unused authorized revolving credit facility was $208.3 ($ 600.0  as at September 28, 2013). Given that the Corporation frequently increases and decreases this credit facility  through  bankers' acceptances with a minimum of 30 days and to simplify its presentation, the Corporation found that it  is preferable for the understanding of its financing activities to present the consolidated statement of cash flows solely  with net  annual changes. Minimum  required  payments  on debt in  the  upcoming fiscal  years  will be as follows: The  minimum payments in respect of the obligations under finance leases included interest amounting to $17.8 on these  obligations in 2014  ($20.8 in 2013). On  August 22, 2014, the  maturity  of the revolving  credit  facility was  extended  to November 3, 2019. On December 5, 2014, the Corporation reimbursed its revolving credit facility .  Also, on December 31, 2014, the  Corporation will redeem its $200.0 aggregate principal amount of Series A notes.These changes are not taken into  consideration  in  the  above tables  (note  31  -  Event after the reporting period). - 70 - 21. DEBT 2014  2013 Revolving Credit Facility, bearing interest at a weighted average rate of 2.50% (2.47% in 2013), repayable on November 3, 2019 or earlier  391.7  — Series A Notes, bearing interest at a fixed nominal rate of 4.98%, maturing on October 15, 2015 and redeemable at the issuer's option at fair value at any time  prior to maturity 200.0  200.0 Series B Notes, bearing interest at a fixed nominal rate of 5.97%, maturing on October 15, 2035 and redeemable at the issuer's option at fair value at any time  prior to maturity 400.0  400.0 Loans, maturing on various dates through 2027, bearing interest at an average rate of 3.08% (3.16% in 2013)  32.4  28.1 Obligations under finance leases, bearing interest at an effective rate of 8.5% (8.6% in 2013) 36.9  39.0 Deferred financing costs (3.9 )  (4.7) 1,057.1  662.4 Current portion 12.4  12.4 1,044.7  650.0 Facility and loans Notes Obligations under finance leases  Total 2015  8.4 — 6.7 15.1 2016  2.2 200.0 6.5 208.7 2017  1.7 — 5.9 7.6 2018  0.9 — 5.4 6.3 2019  0.7 — 4.5 5.2 2020 and thereafter  410.2 400.0 25.7 835.9 424.1  600.0 54.7 1,078.8 Notes to consolidated financial statements  September 27, 2014 and September 28, 2013 (Millions of dollars, unless otherwise indicated)