Source: https://www.igf.finances.gouv.fr/files/live/sites/igf/files/contributed/IGF%20internet/2.RapportsPublics/2018/2018-M-035-04-Convention%20tripartite%202015-2018%20entre%20l%20Etat%20l%20Un%C3%A9dic%20et%20P%C3%B4le%20emploi.pdf