Official information (Ministry of Interior, etc.) about the total capacity of the camps in a country are sometimes available. However this indicator is the sum of the capacities of operational camps in the country. The sources of these data are often different from one camp to another, it is not possible for us – as a matter of readability – to display these sources here. We are looking for a technical solution to indicate the various sources of this indicator, and report further discrepancies between the official total capacity and the actual capacity. As a reminder, the official total capacity of camps - when published - is often less than the actual capacity.