Case T-270/12: Judgment of the General Court of 29 February 2016 — Panalpina World Transport (Holding) and Others v Commission (Competition — Agreements, decisions and concerted practices — International air freight forwarding services — Decision finding an infringement of Article 101 TFEU — Price fixing — Surcharges and charging mechanisms affecting the final price — Fines — Proportionality — Gravity of the infringement — Equal treatment — Obligation to state reasons — Settlement — 2006 Guidelines on the method of setting fines)