It's not every day that a national Census is published. They come around once every 10 years or so - if we're lucky.
Last month saw the release of the 1921 Census - a full 100 years after the results were collected door-to-door around the country.
Taken on June 19 that year, the Census saw more than 38,000 enumerators sent to every corner of England of Wales to capture the details of more than 38 million people.
