message: Don't count children as adults. Count retirees as adults.
diff: @@ -93,7 +93,7 @@ int Population::size(PersonRole personRole)
  int Population::adults() const
  {
  - return mPopulation[PersonRole::ROLE_STUDENT] + mPopulation[PersonRole::ROLE_WORKER] + mPopulation[PersonRole::ROLE_SCIENTIST] + mPopulation[PersonRole::ROLE_CHILD];
  + return mPopulation[PersonRole::ROLE_STUDENT] + mPopulation[PersonRole::ROLE_WORKER] + mPopulation[PersonRole::ROLE_SCIENTIST] + mPopulation[PersonRole::ROLE_RETIRED];
  }
  /**
  