| 1 . | | | | 24 | | ︽ | ︾ ︽ | | ︾ | 2 . | | | | | | 39 % 70 % 38 % | | | | | | 3 . | | | | | | | 4 . | | | | | | | | | 5. | | 10 ~ 15 40 | | | |