To estimate the FFO / Net debt ratio for 2022, I started with the net profit attributable to owners of the parent (€857 million) and added back non‑cash items such as depreciation and amortisation (€736 million), net provisions (€14.8 million), the loss on disposal of assets (‑€6.9 million) and other non‑cash movements (‑€24.1 million). I also included the finance‑cost adjustment (€101.5 million) that represents the non‑cash portion of net finance costs. This yields a Funds‑From‑Operations figure of approximately €1.66 billion.

Net debt was calculated as total debt (long‑term borrowings, short‑term borrowings, the current portion of long‑term borrowings, and other financial liabilities ≈ €11.06 billion) minus cash and cash equivalents and current financial assets (≈ €2.41 billion), giving net debt of roughly €8.65 billion.

Dividing FFO by net debt gives a ratio of about 0.19.

<answer>0.19</answer>