| | | 5% | 10 ~12 | | | | 1/3 ~ 1/2 | | 1/5 | 2 | | | | | | | 3 | 1. | 30 2. | 30 ~ 45 | 3. 4. | | | C | | | | 2 ~ 12 | 1. 30 2. | 2 ~ 3 2 | |