| | | | | | | | | | | | | | | | | | | | | | 2000 | | | | 2-3 | | | | 2 ~ 3 | 4000 ~ 6000 | | 28 | 2018 728 | | | | 278 | 35 | | | | | | | | | | 120 | 4000 | | 2008 | | | |