| Age category (years) | Total | Kempo | Kokuho | Koki Koreisha Iryo Seido |
|---|---|---|---|---|
| N = 2,220,702 | N = 824,516 | N = 1,095,713 | N = 300,473 | |
| 0-4 | 2.2% | 3.6% | 1.7% | 0.0% |
| 5-9 | 3.4% | 4.9% | 3.1% | 0.0% |
| 10-14 | 3.4% | 4.9% | 3.1% | 0.0% |
| 15-19 | 3.7% | 5.4% | 3.4% | 0.0% |
| 20-24 | 5.3% | 7.3% | 5.3% | 0.0% |
| 25-29 | 6.2% | 8.1% | 6.5% | 0.0% |
| 30-34 | 5.5% | 7.0% | 5.9% | 0.0% |
| 35-39 | 5.7% | 7.6% | 5.8% | 0.0% |
| 40-44 | 6.0% | 8.5% | 5.8% | 0.0% |
| 45-49 | 7.0% | 10.2% | 6.4% | 0.0% |
| 50-54 | 6.5% | 9.8% | 5.8% | 0.0% |
| 55-59 | 6.0% | 8.3% | 5.8% | 0.0% |
| 60-64 | 6.2% | 6.0% | 8.0% | 0.0% |
| 65-69 | 8.7% | 4.6% | 14.1% | 0.6% |
| 70-74 | 10.9% | 3.6% | 19.1% | 1.3% |
| 75-79 | 3.8% | 0.0% | 0.1% | 27.3% |
| 80-84 | 3.4% | 0.0% | 0.0% | 25.0% |
| 85-89 | 3.0% | 0.0% | 0.0% | 21.9% |
| 90-94 | 2.0% | 0.0% | 0.0% | 15.1% |
| 95-99 | 0.9% | 0.0% | 0.0% | 6.7% |
| ≥100 | 0.3% | 0.0% | 0.0% | 2.1% |
