| | 1970 1 | | | 1996 6 | 1991 7 | | | | 1987.09 1991.07 | | | 1991.07 1995.02 | | 1995.02 1999.03 | | 1999.03 2001.12 | | | 2001.12 2003.12 | | | 2003.12 2005.06 | | 2005.06 2007.09 | | 2007.09 2008.07 | | 2008.07 2009.02 | | | 2009.02 2010.10 | | 2010.10 2013.01 | | 2013.01 2015. 05 | | | 2015.05 2016.11 | | 2016.11 2017.06 | | | 2017.06 2017.12 | | 2017.12 2018.01 | | | 2018.01 2019.05 | | | 2019.05 2020.07 | | | 2020.07 2021.02 | | | 2021.02 | | | |