# South Korea Korea: Water supply; sewage, waste management, materials recovery / Volume Index (BOK ECOS)

South Korea Korea: Water supply; sewage, waste management, materials recovery / Volume Index (BOK ECOS) was down 4.2% year on year in September 2026, compared with 1.9% in August 2026.
The level stood at 92.00 2020=100.
Over the past ten years it has ranged from −14.5% (Oct 2025) to 17.1% (Feb 2020), averaging −0.2%.

- Source agency: Bank of Korea
- Makrognosis code: `KR.SVCOUT.M.NSA.ITEM-I51AA-2`
- Frequency: monthly
- Units: 2020=100
- Coverage: 2016-01-01 to 2026-09-01 (129 observations)
- Page: https://makrognosis.robomacro.com/data/south-korea/korea-water-supply-sewage-waste-management-materials-recovery-volume

## Recent data

| Period | Value | Y/Y % |
|---|---:|---:|
| September 2026 | 92.00 2020=100 | −4.2 |
| August 2026 | 95.10 2020=100 | 1.9 |
| July 2026 | 99.60 2020=100 | −0.2 |
| June 2026 | 98.00 2020=100 | 1.2 |
| May 2026 | 88.50 2020=100 | −8.8 |
| April 2026 | 93.10 2020=100 | 1.9 |
| March 2026 | 91.00 2020=100 | 1.6 |
| February 2026 | 71.90 2020=100 | −8.3 |
| January 2026 | 82.50 2020=100 | 4.6 |
| December 2025 | 96.70 2020=100 | 2.2 |
| November 2025 | 94.70 2020=100 | −3.7 |
| October 2025 | 89.60 2020=100 | −14.5 |
| September 2025 | 96.00 2020=100 | 2.5 |
| August 2025 | 93.30 2020=100 | −7.3 |
| July 2025 | 99.80 2020=100 | −0.4 |
| June 2025 | 96.80 2020=100 | 0.3 |
| May 2025 | 97.00 2020=100 | −3.4 |
| April 2025 | 91.40 2020=100 | −6.1 |
| March 2025 | 89.60 2020=100 | −5.6 |
| February 2025 | 78.40 2020=100 | −1.5 |
| January 2025 | 78.90 2020=100 | −12.1 |
| December 2024 | 94.60 2020=100 | 1.5 |
| November 2024 | 98.30 2020=100 | −2.5 |
| October 2024 | 104.8 2020=100 | 6.2 |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/KR.SVCOUT.M.NSA.ITEM-I51AA-2"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/KR.SVCOUT.M.NSA.ITEM-I51AA-2",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]
```