Where are the WikiLeaks cables from?

The Guardian broke down the WikiLeaks cables and visualized them in a map that shows the user where they came from. The map shows which are the top locations the cables (only the specific chunk of leaked cables by the WikiLeaks and not the totality of cables sent) were sent from. The map also includes a timeline showing when the cables were sent, how the cables were classified (confidential, unclassified, unclassified/for official use only, secret, confidential/noforn, and secret/noforn), and the keywords.