| 1982 10 | 2006 1 2004 | 6 | | | | 2006.01 2008.05 | ; | 2008.05 2009.05 | ; | 2009.05 2011.03 | | ; | 2011.03 2012.04 | ; | 2012. 04 2015. 11 | | ; | 2015.11 2016.01 | ; | 2016.01 2016.04 | | ; | 2016.04 2019.03 | | ; | 2019.03 2020.06 | 2020. | 01 ; | 2020.06 2021.04 | | | ; | 2021.04 2021.06 | | | ; | 2021.06 | | |