User:Carcharoth/Featured article numbers

Side-interest in the numbers and stats concerning featured articles.
 * Wikipedia Signpost/2008-02-25/Dispatches
 * more later...

Statistics to look up or calculate

 * Total number of articles that have ever had FA status (even if they don't have it now - define starting point of FA process) - this should equate to the sum of Category:Featured articles and Category:Wikipedia former featured articles, even if some (very few) articles may have switched between these two categories several times.
 * As of 09/11/2008, 2300 FAs and 630 FFAs, for a total of 2930 articles that passed FAC at some point.
 * Total number of FACs (since the FAC page started - before that is tricky)
 * Total number of FARs (since the FAR page started - before that is tricky)
 * All members of Category:Featured articles should be either:
 * Promoted after single FAC
 * Promoted after multiple FACs (before first promotion)
 * Promoted and no subsequent review
 * Promoted and x subsequent reviews and kept each time
 * Promoted and x subsequent reviews and demoted but later promoted again (possibly rare)
 * All members of Category:Wikipedia former featured articles should be either:
 * Promoted and demoted on first review
 * Promoted and demoted after x reviews
 * Promoted and demoted and promoted and then demoted again (should be exceedingly rare)
 * From the above:
 * Promotion rate at FAC (will vary over time)
 * Demotion rate at FAR (will vary over time)
 * The relative rate of FAR applications compared to overall number of FAs ever awarded
 * The relative number of multiple FARs and multiple FACs (compared to overall FARs and FACs)
 * The rare cases where articles are promoted or demoted multiple times
 * Featured articles that went through a FAR and were kept are in Category:Wikipedia featured article review candidates (closed). They are still in this category even if a later FAR (then FARC) process demotes them, leading to them being in Category:Wikipedia former featured articles as well as the FAR closed category.
 * Problem - name changes can lead to FAC and FARs under different names...
 * Check FARC - see here (some are redirects, some are not, some have FARs, some don't)

Promoted, demoted and promoted again

 * Autism

Promoted, demoted, promoted, and demoted again

 * None found yet