To calculate the Net Debt / EBITDA ratio for 2022 using the S&P methodology, we must first derive the EBITDA and the Net Debt.

**1. Calculating EBITDA (2022-2023 period):**
The provided data covers the year ending 2022 (referred to as 2023-01-01 in the report).
*   Profit Loss from Operating Activities: 641,338,000 EUR
*   Depreciation, Amortisation, and Impairment (taken from "Depreciation Amortisation And Impairment Loss Reversal Of Impairment Loss Recognised In Profit Or Loss"): 479,186,000 EUR
*   EBITDA = Operating Profit + Depreciation/Amortisation
*   EBITDA = 641,338,000 + 479,186,000 = 1,120,524,000 EUR

**2. Calculating Net Debt (as of 2023-01-01):**
Net Debt is typically calculated as Total Financial Debt (Short-term + Long-term) minus Cash and Cash Equivalents, adjusted for other financial assets.
*   Short-term Financial Liabilities: 142,437,000 EUR
*   Long-term Financial Liabilities: 6,402,913,000 EUR
*   Other current financial liabilities: 290,000 EUR
*   Other non-current financial liabilities: 34,000 EUR
*   Total Gross Debt = 142,437,000 + 6,402,913,000 + 290,000 + 34,000 = 6,545,674,000 EUR
*   Cash and Cash Equivalents: 451,946,000 EUR
*   Current Financial Assets (excluding others): 5,770,000 EUR
*   Other Current Financial Assets: 17,455,000 EUR
*   Non-current Financial Assets: 22,945,000 EUR
*   Other Non-current Financial Assets: 35,442,000 EUR
*   Total Financial Assets = 451,946,000 + 5,770,000 + 17,455,000 + 22,945,000 + 35,442,000 = 533,558,000 EUR
*   Net Debt = Total Gross Debt - Total Financial Assets = 6,545,674,000 - 533,558,000 = 6,012,116,000 EUR

**3. Net Debt / EBITDA Ratio:**
*   Ratio = 6,012,116,000 / 1,120,524,000 ≈ 5.3654

Rounding the result to the nearest hundredth: 5.37.

<answer>5.37</answer>