| | | | | | | | | 1968 4 | 1990 2 1987 8 | | | 1984.09 - 1987.07 | | 1987.08-1989.02 | | 1989.02-1991.09 | ( 1988. 09-1991.06 | ) | 1991.09-1992.08 | | 1992.08-1995.06 | | 1995.06 -1996.10 | | 1996.10 -1998.11 | | 1998.11 - 1999. 05 | | 1999.05 -2001.04 | | 2001.04 -2004.01 | 2000.08 = 2002. | 12 ) | 2004.01-2006.10 | | 2006.10 - 2010.04 | | 2010.04-2015.07 | ( 201 . | 09-2014.07 | ) | 2015.07-2016.05 | | 2016.05-2016.11 | | 2016.11- 2019.06 | | 2019.06 - 20201 . 06 | | 2021.06-2022.01 | | | 2022.01--- | |