calculate the estimated lifetime value of the framework agreement (that is the sum of the estimated lifetime value of all contracts that have or may be awarded under the framework)
gyfrifo gwerth oes amcangyfrifedig y cytundeb fframwaith (hynny yw swm gwerth oes amcangyfrifedig yr holl gontractau sydd wedi’u dyfarnu, neu a allai gael eu dyfarnu, o dan y fframwaith)