# United Kingdom 04.4.1 Water supply IDEF SA 2023=100 ()

United Kingdom 04.4.1 Water supply IDEF SA 2023=100 () was up 9.0% year on year in Q2 2026, compared with 26.6% in Q1 2026.
The level stood at 137.1 (index (2023=100)).
That is the lowest reading since Q1 2025.
Over the past ten years it has ranged from −1.9% (Q4 2020) to 26.6% (Q4 2025), averaging 5.5%.

- Source agency: UK Office for National Statistics
- Makrognosis code: `UK.HHCONS.Q.SA.COICOP-04-4-1.MEASURE-IDEF`
- Frequency: quarterly
- Units: index (2023=100)
- Coverage: 1997-01-01 to 2026-04-01 (118 observations)
- Page: https://makrognosis.robomacro.com/data/united-kingdom/04-4-1-water-supply-idef-sa-2023-100

## Recent data

| Period | Value | Y/Y % |
|---|---:|---:|
| Q2 2026 | 137.1 | 9.0 |
| Q1 2026 | 132.3 | 26.6 |
| Q4 2025 | 128.8 | 26.6 |
| Q3 2025 | 126.1 | 24.6 |
| Q2 2025 | 125.8 | 24.7 |
| Q1 2025 | 104.5 | 8.7 |
| Q4 2024 | 101.7 | 6.7 |
| Q3 2024 | 101.2 | 7.2 |
| Q2 2024 | 100.9 | 7.2 |
| Q1 2024 | 96.10 | 9.0 |
| Q4 2023 | 95.30 | 9.8 |
| Q3 2023 | 94.40 | 8.9 |
| Q2 2023 | 94.10 | 8.5 |
| Q1 2023 | 88.20 | 4.0 |
| Q4 2022 | 86.80 | 3.2 |
| Q3 2022 | 86.70 | 3.6 |
| Q2 2022 | 86.70 | 5.3 |
| Q1 2022 | 84.80 | 3.0 |
| Q4 2021 | 84.10 | 3.1 |
| Q3 2021 | 83.70 | 3.1 |
| Q2 2021 | 82.30 | 1.7 |
| Q1 2021 | 82.30 | −1.7 |
| Q4 2020 | 81.60 | −1.9 |
| Q3 2020 | 81.20 | −1.6 |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/UK.HHCONS.Q.SA.COICOP-04-4-1.MEASURE-IDEF"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/UK.HHCONS.Q.SA.COICOP-04-4-1.MEASURE-IDEF",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]
```