年龄组/岁 | 种群1 | 种群2 | 种群3 |
0-10 | 30% | 20% | 5% |
11-20 | 25% | 15% | 5% |
21-45 | 30% | 35% | 35% |
46-60 | 10% | 20% | 35% |
61 + | 5% | 10% | 20% |