| | | | | 10%~20% | | | 20 30 | 24 28 90% | | | | | 20 | | 1. | | | | | | | | | | | | | 2. | | | | 3. | | | | 4. | | | | | | 20 | 30 90% | | | | | | | 5. | | | | 1 | | | | 2 | | | 20 2 ~ 3 | 15 3 ~ 4 | 10 | 50% | 1000 5 | | | | 1 | 75 ~ 80 75 40% 60 | 25 | 75% 60 | | 70% 800 50% | 800 7 | | 7 |