Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Questionnaire recovery.
| Category | Questionnaire distribution method | Quantity issued | Number recycled | Effective quantity | Recovery rate | Efficiency |
|---|---|---|---|---|---|---|
| Large sample survey | Site investigation visit | 435 | 426 | 406 | 97.93% | 93.33% |
| 165 | 90 | 83 | 54.54% | 50.30% | ||
| Total | 600 | 516 | 489 | 86.00% | 81.50% |
