This is a count of posts in Hatrackers in Print. All posts were assumed to be reflective of publication notices (but this post proves that wrong). The posts prior to June 2004 were too infrequent to use (whole years are missing). When data was unavailable (such as Nov-Dec 2007), I fudged the averages.

---2007----2006----2005----2004----Avg
Dec-------------3-------3-------0-------2.0
Nov-------------1-------7-------2-------3.3
Oct-----18------3-------8-------3-------8.0
Sept----5-------10------5-------4-------6.0
Aug-----13------10------3-------4-------7.5
July----0-------3-------8-------2-------3.3
June----2-------6-------4-------0-------3.0
May-----4-------6-------8-------0-------4.5
Apr-----6-------4-------1-------1-------3.0
Mar-----5-------9-------8---------------7.3
Feb-----7-------8-------5---------------6.7
Jan-----6-------6-------3---------------5.0

--WouldBe

Drat. Courier doesn't seem to have even spacing here.

The place to go for this data (if you are really bored and want to do the math) is the Black Hole