MasterGwydion
Emperor Mongoose
The IISS would be counting people by orders of magnitude, which is done from orbit, as part of the Preliminary Survey on page 4 of the Deep Space Exploration Handbook. So, no, I am asking about the official UWP published by the IISS from the Second Survey, which is what the UWPs are, officially published IISS surveys.Okay, so you are asking census-related question. The most logical in-game answer would be that the scout service does not count each individual when they do a survey. They just collect data provided to them by the local governments (or whoever is in charge) and in some cases, not every sophont is counted by that locality for reasons which may be left unanswered. They may not be Imperial Citizens per se, but rather counted by whatever metric the local government determined. I think expecting a scout ship to do a manual count of every sophont is a bit of a stretch when we're talking billions of sophonts across the galaxy. It would make much more sense that they are simply compiling data already gathered by others, and it is susceptible to error, intentional omission, or even malicious intent.
Unless you are saying that the IISS is given all of its data by planetary governments and doesn't perform actual survey work?