To estimate the Net Debt / EBITDA ratio for 2022 based on the S&P methodology, we need to calculate the components: Net Debt and EBITDA for the year 2022 (dates 2022-01-01 to 2023-01-01).

**1. Calculate EBITDA**
The report explicitly provides the EBITDA for 2022:
- "Beneficio Bruto De Explotacion Ebitda" 2022-01-01 - 2023-01-01: 13,228,000,000 EUR
Thus, EBITDA = 13,228 million EUR.

**2. Calculate Net Debt**
Under S&P methodology, Net Debt is typically calculated as: Total Financial Debt (Short-term + Long-term financial liabilities, excluding derivatives) minus Cash and Cash Equivalents.

Let's break down the financial liabilities (excluding derivative liabilities and lease liabilities, which S&P generally classifies as operating obligations, consistent with EBITDA adjusting for rent/lease expenses):
- **Noncurrent Financial Liabilities** (2023-01-01): 44,216,000,000 EUR
  - Less: Noncurrent Derivative Financial Liabilities: 3,690,000,000 EUR
  - Less: Noncurrent Lease Liabilities: 2,287,000,000 EUR
  - Noncurrent Debt = 44,216 - 3,690 - 2,287 = 38,239,000,000 EUR
- **Current Financial Liabilities** (2023-01-01): 25,079,000,000 EUR
  - Less: Current Derivative Financial Liabilities: 3,398,000,000 EUR
  - Less: Current Lease Liabilities: 151,000,000 EUR
  - Current Debt = 25,079 - 3,398 - 151 = 21,530,000,000 EUR

Total Financial Debt = 38,239,000,000 + 21,530,000,000 = 59,769,000,000 EUR.

Cash and Cash Equivalents (2023-01-01): 4,608,000,000 EUR.

Net Debt = Total Financial Debt - Cash & Cash Equivalents
Net Debt = 59,769,000,000 - 4,608,000,000 = 55,161,000,000 EUR.

*(Note: Even if we simply took the aggregate reported financial liabilities (44,216m + 25,079m = 69,295m) and only subtracted the derivative liabilities (3,690m + 3,398m = 7,088m) and cash (4,608m), the debt would be 57,599m, yielding a ratio of ~4.35x. However, removing operating leases to align with the EBITDA metric is the standard S&P approach).*

**3. Calculate Net Debt / EBITDA Ratio**
Ratio = Net Debt / EBITDA
Ratio = 55,161,000,000 / 13,228,000,000
Ratio ≈ 4.1705

Rounding to two decimal places gives 4.17.

<answer>4.17</answer>