pre_text: Note 24 Post-employment benefit plans POST-EMPLOYMENT BENEFIT PLANS COST We provide pension and other benefits for most of our employees. These include DB pension plans, DC pension plans and OPEBs. We operate our DB and DC pension plans under applicable Canadian and provincial pension legislation, which prescribes minimum and maximum DB funding requirements. Plan assets are held in trust, and the oversight of governance of the plans, including investment decisions, contributions to DB plans and the selection of the DC plans investment options offered to plan participants, lies with the Pension Fund Committee, a committee of our board of directors. The interest rate risk is managed using a liability matching approach, which reduces the exposure of the DB plans to a mismatch between investment growth and obligation growth. The longevity risk is managed using a longevity swap, which reduces the exposure of the DB plans to an increase in life expectancy. COMPONENTS OF POST-EMPLOYMENT BENEFIT PLANS SERVICE COST
table: FOR THE YEAR ENDED DECEMBER 31 2019 2018
table: DB pension (193) (213)
table: DC pension (110) (106)
table: OPEBs (3) (3)
table: Less:
table: Capitalized benefit plans cost 59 56
table: Total post-employment benefit plans service cost included in operating costs (247) (266)
table: Other costs recognized in severance, acquisition and other costs – (4)
table: Total post-employment benefit plans service cost (247) (270)
question: Analyse this data from a financial earnings document. What is the average total post-employment benefit plans service cost over 2018 and 2019?