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“Naga-imo”, yams: Japan CPI trend
Year on year-1.1%Aug 2026
Month on month+2.5%
Rank among items510 / 594
Peak since 2021+38.1%Nov 2023
Weight (per 10,000)5
Year-on-year change vs all items and group
Index (2020 = 100)
Average yearly change
-4.6%
-1.5%
+19.5%
+2.9%
+6.0%
+1.9%
Last 24 months
| Month | Index | MoM | YoY |
|---|---|---|---|
| Aug 2026 | 99.8 | +2.5% | -1.1% |
| Jul 2026 | 97.4 | +0.7% | +2.6% |
| Jun 2026 | 96.7 | +0.7% | +1.8% |
| May 2026 | 96.1 | -2.9% | -0.6% |
| Apr 2026 | 98.9 | +0.2% | +2.2% |
| Mar 2026 | 98.7 | -2.2% | +1.7% |
| Feb 2026 | 100.9 | -2.2% | +3.4% |
| Jan 2026 | 103.2 | -3.0% | +4.9% |
| Dec 2025 | 106.4 | -0.6% | +8.7% |
| Nov 2025 | 107.1 | +1.2% | +9.5% |
| Oct 2025 | 105.8 | +2.1% | +7.7% |
| Sep 2025 | 103.7 | +2.7% | +8.0% |
| Aug 2025 | 101.0 | +6.4% | +9.2% |
| Jul 2025 | 94.9 | -0.1% | +3.4% |
| Jun 2025 | 95.0 | -1.8% | +3.4% |
| May 2025 | 96.7 | -0.1% | +5.4% |
| Apr 2025 | 96.8 | -0.2% | +5.9% |
| Mar 2025 | 97.0 | -0.6% | +5.6% |
| Feb 2025 | 97.6 | -0.8% | +4.2% |
| Jan 2025 | 98.4 | +0.3% | +1.6% |
| Dec 2024 | 119.4 | +0.1% | -3.9% |
| Nov 2024 | 119.2 | -0.6% | -8.7% |
| Oct 2024 | 119.9 | +2.5% | -6.5% |
| Sep 2024 | 117.0 | +3.8% | -3.7% |
Position within Food (YoY)
-0.7%
-0.7%
-0.7%
-0.9%
-1.0%
-1.1%
-1.1%
-1.2%
-1.2%
-1.3%
-1.3%
-1.3%
-1.3%
Year-on-year change of the Japan CPI (Statistics Bureau, all Japan). Item indices, not shop prices.