| 1. 40 ~ 80 0.25% | | 2. 20 ~ 50 1 | ~ 2 | 3. 4000 ~ 8000 / 2000 ~ 4000 | / 20 % 100 ~ 150 | | 4. 0.25 ~ 0.5 10 ~ | 25 | 5. 6% 2 ~ 10 | 1 | 6. 12.5% 10 ~ 20 | 1 |