年龄段 时间 | 0~14岁 | 15~64岁 | 65岁以上 |
1990 | 27.7% | 66.7% | 5.6% |
2000 | 22.9% | 70.1% | 7.0% |
2010 | 16.6% | 74.5% | 8.87% |
2015 | 16.5% | 73.0% | 10.5% |