Cross-border comparability will remain a problem as different countries converge gradually to the global standards. Even after it happens, mechanisms that ensure the full dissemination of information need to be instituted or strengthened to derive the full benefits of comparability. Finally, on the issue of inclusion, this is clearly an objective at the core of the larger development agenda.
It is not easy, even for people within the system, to appreciate the sheer scale of the challenge. It is not just a question of numbers.