| Region | Population | Sample | Response Rate | ||
|---|---|---|---|---|---|
| Primary residence | Project Area | Primary residence | Project Area | ||
| Seoul | 12 | 0 | 7 | 0 | − |
| Gyeonggi | 10 | 1 | 6 | 0 | − |
| Gangwon | 6 | 8 | 0 | 2 | 25.0% |
| Gyeongbuk | 11 | 17 | 6 | 9 | 52.9% |
| Gyeongnam | 7 | 10 | 3 | 5 | 50.0% |
| Jeonbuk | 3 | 10 | 3 | 6 | 60.0% |
| Jeonnam | 7 | 9 | 3 | 4 | 44.4% |
| Chungbuk | 3 | 3 | 3 | 3 | 100.0% |
| Chungnam | 6 | 9 | 3 | 6 | 66.6% |
| Daegu | 1 | 0 | 0 | 0 | − |
| Busan | 1 | 0 | 1 | 0 | − |
| Ulsan | 0 | 1 | 0 | 1 | 100.0% |
| Incheon | 1 | 0 | 1 | 0 | − |
| Total | 68 | 68 | 36 | 36 | 52.9% |