| | | | 1968 04 | | | | | | | | | | | | | | | | | | | 1987.07 1988.07 | | 1988.07 1991.07 | | 1991.07 2000.12 | | | 2000.12 2001.12 | | | 2001.12 2002.09 | | 2002.09 2005.12 | | 2005.12 2009.01 | | 2009.01 2009.09 | | 2009.09 2011.01 | | | 2011.01 2013.02 | | 2013.02 2016.01 | | 2016.01 2018.03 | | 2018.03 2019.01 | | | 2019.01 2020.08 | | 2020.08 2020.10 | | | 2020.10 | | |