| (unit: person) |
| Year |
2005 |
2010 |
2015 |
2020 |
Difference |
| Age |
2015-2005 |
2020-2010 |
| Total |
2.43 |
2.38 |
2.19 |
2.07 |
-0.24 |
-0.31 |
| 15-49 |
1.74 |
1.74 |
1.63 |
1.52 |
-0.11 |
-0.22 |
| 15-29 |
0.88 |
0.97 |
0.81 |
0.72 |
-0.07 |
-0.25 |
| 30-39 |
1.71 |
1.63 |
1.46 |
1.31 |
-0.25 |
-0.32 |
| 40-49 |
1.97 |
1.96 |
1.84 |
1.73 |
-0.13 |
-0.23 |
| 50-59 |
2.49 |
2.18 |
1.95 |
1.87 |
-0.54 |
-0.31 |
| 60≤ |
3.96 |
3.66 |
3.13 |
2.72 |
-0.83 |
-0.94 |