| 1961 8 | 1984 7 | | | | 1980 9 1984 7 | | 1984 7 1984 12 | | 1985 1 1986 6 | | | 1986 7 1987 4 | | 1987 4 1989 5 | | 1989 5 1991 11 | | | 1991 11 1993 12 | | 1993 12 1997 6 | | 1997 6 1999 2 | | | 1999 2 2000 12 | | 2000 12 2003 12 | | 2003 12 2006 8 | | | 2006 8 2010 4 | | 2010 4 2011 5 | | | 2011 5 2012 4 | | | 2012 4 2012 11 | | 2012 11 | | | | |