| | | | | | | | | | | | | | | | | | 1974 9 | | 1997 12 | | | | 1997 12 2001 4 | | 2001 4 2002 1 | | 2002 1 2002 10 | | 2002 10 2005 3 | | | 2005 3 2006 11 | | 2006 11 2010 11 | | 2010 11 2013 11 | | | 2013 11 2017 12 | | | 2017 12 2019 4 | | 2019 4 | | |