| | 12 | | 9 27 10 8 | 12 1.9 | 12306 9 | 13 | 9 15 | 9 29 | | | | 8 | | | | | | | | | | 12 | | | | 2019 18.5 % | | | | | | | | | | 12306 | | | | | | 12306 | | | | |