| | | | 1. | | | 0.3% | | | | | | | | | 2. | | | | | | | 3. | | | | 4. | | | | | | 1. | | | | 2. | | | 3. | | | | | 4. | | | 60 40 20 | | | 5. | | 10~15 | | 18~25 | 6. | | | | |