Office for National Statistics, Census 2011, Open Government License 3.0
Glasses by Roman J. Sokolov from the Noun Project – CC-BY v3
Crowd by Hea Poh Lin from the Noun Project – CC-BY v3
Handshake by bmijnlieff from the Noun Project – CC-BY v3
People by Davo Sime from the Noun Project – CC-BY v3