The discounted weighted average duration of the accrued liabilities of the sections are respectively 16 years (Group 4 section), 18 years (GSL section) and 17 years (Securicor section). As at 31 December 2014 the discounted weighted average duration of the accrued liabilities of the sections were 18 years (Group 4 section), 20 years (GSL section) and 19 years (Securicor section).