population des Etats Unis

https://docs.google.com/document/d/1Z7Yy-kyHXEeRQJFJFHkNK2vrkeUzOnDUOhXOVVYw5gg/edit?hl=en

https://docs.google.com/document/d/19furkL0WhshqGYZ7Qp4McAJGTmhmQ79uszuiFoytxTM/edit?hl=en