《= 20 |
 
5 (3.6%)
|
20-30 |
 
1 (0.7%)
|
30-40 |
 
3 (2.2%)
|
40-45 |
 
8 (5.8%)
|
45-50 |
 
35 (25.4%)
|
50-55 |
 
46 (33.3%)
|
55-60 |
 
18 (13%)
|
60-65 |
 
3 (2.2%)
|
65-70 |
 
5 (3.6%)
|
》= 70 |
 
15 (10.9%)
|