# Japan CPI — Gas (2025=100 index)

Japan CPI — Gas (2025=100 index) was up 2.4% year on year in September 2026, compared with 2.0% in August 2026.
The level stood at 99.50 (index).
That is the highest reading since June 2025.
Over the past ten years it has ranged from −13.9% (Dec 2023) to 23.4% (Dec 2022), averaging 2.0%.

- Source agency: Statistics Bureau of Japan (e-Stat)
- Makrognosis code: `JP.CPI.M.NSA.GRP-GAS`
- Frequency: monthly
- Units: index
- Coverage: 2001-01-01 to 2026-09-01 (309 observations)
- Page: https://makrognosis.robomacro.com/data/japan/cpi-gas-2025-100-index

## Recent data

| Period | Value | Y/Y % |
|---|---:|---:|
| September 2026 | 99.50 | 2.4 |
| August 2026 | 100.6 | 2.0 |
| July 2026 | 103.4 | 1.6 |
| June 2026 | 101.9 | −0.8 |
| May 2026 | 101.1 | −1.7 |
| April 2026 | 98.30 | −3.2 |
| March 2026 | 93.50 | −5.3 |
| February 2026 | 93.30 | −5.1 |
| January 2026 | 99.50 | −0.5 |
| December 2025 | 99.70 | −2.2 |
| November 2025 | 99.80 | 0.8 |
| October 2025 | 97.10 | 0.6 |
| September 2025 | 97.20 | 1.6 |
| August 2025 | 98.60 | −2.8 |
| July 2025 | 101.8 | 0.0 |
| June 2025 | 102.7 | 2.7 |
| May 2025 | 102.9 | 5.4 |
| April 2025 | 101.6 | 4.4 |
| March 2025 | 98.70 | 2.5 |
| February 2025 | 98.30 | 3.4 |
| January 2025 | 100.0 | 1.9 |
| December 2024 | 101.9 | 7.8 |
| November 2024 | 99.00 | 5.5 |
| October 2024 | 96.50 | 3.5 |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/JP.CPI.M.NSA.GRP-GAS"

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