| O | Newly Added | O | Available | X | Missing or unknown | Not Published | Association not active |
| Note: many of the 1989 issues don't have dates so we have had to guess as to which month they belong to using internal content | ||||||||||||
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| 1989 | O O O O O O O O O OO | |||||||||||
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| 1990 | O O O O O O O O O O O O||||||||||||
| 1991 | X | X | X | X | X | O | O | O | O | O | O | O |
| 1992 | O | O | O | O | O | O | O | O | O | O | O | |
| 1993 | X | X | X | X | X | X | X | X | X | X | X | X |
| 1994 | X | X | X | X | X | X | X | X | X | X | X | X |
| 1995 | X | X | X | X | X | X | X | X | X | X | X | X |
| 1996 | X | X | X | X | X | X | X | X | X | X | X | X |
| 1997 | X | X | X | X | X | X | X | X | X | X | X | X |
| 1998 | X | X | X | X | O | X | X | X | X | X | X | X |
| 1999 | X | X | X | X | X | X | X | X | X | X | X | X |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| 2000 | X | X | X | O | X | O | O | O | O | O | O | O |
| 2001 | O | O | O | O | O | O | O | O | X | O | O | O |
| 2002 | O | O | O | O | O | X | X | X | O | O | O | O |
| 2003 | O | O | O | O | O | O | O | O | O | O | O | O |
| 2004 | X | X | O | X | X | X | X | X | O | X | ||
| 2005 | X | X | X | X | X | X | X | X | X | X | X | X |
| 2006 | X | X | O | X | X | X | X | X | O | X | X | X |
| 2007 | O | X | X | X | O | X | X | X | X | X | X | X |
| 2008 | X | X | X | X | X | X | X | X | X | X | X | X |
| 2009 | O | O | O | O | O | O | O | O | O | O | O | |
| 2010 | O | O | O | O | O | O | O | O | O | O | O | O |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| 2011 | O | O | O | O | O | O | O | O | O | O | O | O |
| 2012 | O | O | O | O | O | O | O | O | O | O | O | O |
| 2013 | O | O | O | O | O | O | O | O | O | O | O | O |
| 2014 | O | O | O | O | O | O | O | O | O | O | O | |
| 2015 | O | O | O | O | O | O | O | O | O | O | O | O |
| 2016 | O | O | O | O | O | |||||||
| 2017 | O | O | O |