Let’s break down the calculation step-by-step.  

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**1. Identify EBITDA for 2022 and 2021**  
From the data:  
- EBITDA 2022 (2022-01-01 to 2023-01-01) = 13,228,000,000 EUR  
- EBITDA 2021 (2021-01-01 to 2022-01-01) = 12,006,000,000 EUR  

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**2. Identify Net Debt**  
Net Debt = (Noncurrent Financial Liabilities + Current Financial Liabilities) – (Cash and Cash Equivalents + Current Financial Assets + Noncurrent Financial Assets excluding investments in associates and other non-debt items).  

For simplicity in this type of calculation, Net Debt is often:  
**Net Debt = (Noncurrent Financial Liabilities + Current Financial Liabilities) – Cash and Cash Equivalents – Current Financial Assets**  

**For 2022:**  
- Noncurrent Financial Liabilities = 44,216,000,000  
- Current Financial Liabilities = 25,079,000,000  
- Cash = 4,608,000,000  
- Current Financial Assets = 4,813,000,000  

Net Debt 2022 = 44,216M + 25,079M – 4,608M – 4,813M = 59,874,000,000 EUR  

**For 2021:**  
- Noncurrent Financial Liabilities = 37,175,000,000  
- Current Financial Liabilities = 21,297,000,000  
- Cash = 4,033,000,000  
- Current Financial Assets = 4,364,000,000  

Net Debt 2021 = 37,175M + 21,297M – 4,033M – 4,364M = 50,075,000,000 EUR  

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**3. Calculate Net Debt / EBITDA**  
- 2022: 59,874 / 13,228 ≈ 4.53x  
- 2021: 50,075 / 12,006 ≈ 4.17x  

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**4. Gap year on year**  
4.53 – 4.17 = +0.36x  

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**5. Comparison to threshold**  
+0.36x > +0.3x → **Deteriorating**  

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<answer>Deteriorating</answer>