https://www.brookings.edu/wp-content/uploads/2021/06/Moving-Up.pdf
https://www.ons.gov.uk/peoplepopulationandcommunity/populationandmigration/populationestimates/articles/overviewoftheukpopulation/mar2017
https://www.keepeek.com//Digital-Asset-Management/oecd/science-and-technology/oecd-science-technology-and-industry-scoreboard-2017/growth-jobs-and-the-digital-transformation_sti_scoreboard-2017-5-en#page1