The involvement of the Registrar is cited as being important to reorganising the taking of the census. One of the intentions was to avoid omissions and double counting by taking the census at the same time across the whole country and collecting the data as quickly as possible. The Civil Registration Districts were subdivided into enumeration districts intended to be of a size where one person could collect the data from all households in a single day. For the first time, military personnel in the country aboard their ships or in barracks were included in the census return. Some 35,000 census enumerators were appointed to undertake the data collection, one enumerator per district, covering a population of about 16 million people.