| | | | | | | | | | | | | | | | 4 | | | | | | | | | | | | | | | | | 1 30% - | 24 | 75% | 2 22% | 4000 ~ 6000 20 | 3 20% • | | | 1500 ~ 2000 | 50 - 60 (4) 21% | | | | 2000 | | 50~60 | |