I wrote 110 short stories, flash and essay peices in April and the first twenty days of May 2011 (here). I do this as part of something that I call NaShoWriMay, which means National Short Writing May.
I always keep my own MS Excel spreadsheet were I track my progress during the month and I present that data here. You can see that the activity flattens out near the end of May. That’s because I wrote another book (here) in the last ten days of May. It’s been a productive spring.