| 1970 5 | 1988 8 | 1991 12 | | | | 1988 8 1994 4 | | 1994 4 2005 3 | 1996 7 | 1999 2 | | 2005 3 2006 3 | | | 2006 3 2008 2 | | | 2008 2 2010 12 | | 2010 12 2011 5 | | 2011 5 2012 9 | | | | 2012 9 2016 7 | | | 2016 7 2017 12 | | 2017 12 | | | | | | | | | | | | | | | |