Question 31/III - Amendments and additions to be made to Recommendation C.1 relating to telecommunication statistics (This Question is to be studied in liaison with Study Groups I and II.) Reasons for the study Recognizing - that administrations and other organizations request statistical data from the ITU to obtain information which may be useful to them in modifying existing services or in offering newly emerging services between member countries; - that CCITT Recommendation C.1 has not been revised since 1980; - that revision of Recommendation C.1 may be necessary due to the fact that a number of administrations no longer supply certain parameters and that new parameters for new services are henceforth required for the purposes of forecasting, etc. The data collected and the layout of the Yearbook could be changed in order to reflect actual telecommunications growth.