reference: ipp
unit: currency
values:
  2000-01-01:
    reference: https://legi.toutelaloi.fr/LEGI/GetArticleByID?reference=LEGIARTI000006791742
    value: 304.56
  2017-10-01:
    reference: https://www.legifrance.gouv.fr/eli/arrete/2017/9/28/TERL1725443A/jo/article_11
    value: 83.29
  2019-10-01:
    reference: https://www.legifrance.gouv.fr/affichTexte.do?cidTexte=JORFTEXT000039160329&dateTexte=20191008
    value: 83.54
