| | | | | | | | | | | | | | | | | | | | | | | | | | | | 1980 3 | | | 2003 6 | 2003 6 | | | | 2003.06 2018.12 | 2018.12 2019.06 | | 2019.06 2021.05 | | 2021.05 | | |