| 1978 7 | 1997 7 | 2000 3 | | | | 1994.09 1997.07 | | 1997.07 2000.03 | | 2000.03 2002.07 | 2002.07 2003.03 | | 2003.03 2004.03 | 2000.12 2003.04 | | | 2004.03 2008.03 | | 2008.03 2011.03 | | 2011.03 2013.02 | | | 2013.02 2015.05 | | 2012.09 2015.01 | | | 2015.05 2016.06 | | 2016.06 2017.09 | | | | 2017.09 2019.01 | | 2019.01 2020.04 | 2018. | 06 2019.06 | | 2020.04 2021.02 | | 2019.06 | | | 2021.02 —— | |