NKR postage stamps were officially issued in the following years:

1993 (1 issue)
1995 (1) / 1996 (1) / 1997 (1)
1998 (2) / 2000 (1) / 2001 (2)
2003 (1) / 2004 (1) / 2005 (3)
2006 (2) / 2008 (1) / 2009 (4)
2010 (1) / 2011 (3)