| | | | | | | 10%-20% 45%-50% | 1. | | ︱ ︱ | | | | | | | 2. | | | | | | | | | | 15%－20% 50% | | 70% | 20% 1000 / | 4000 15 ~ 20 / | 17% 1000 50 ~ 75 / | 25% 8000 6 ~ 9 | / 50 ~ 75 7 ~ 10 1 | 2 ~ 3 |