[Air-L] email statistic?

[Monica Ann Schepers Riordan (mschpers)]

Hello everyone, 

I am deep in the turmoil of writing my dissertation results and am wondering if anyone knows of an article/paper that suggests the average length of an email? I have attempted to find this statistic (or even a paper detailing the number of characters in a corpus and how many emails existed within the corpus so I could calculate it myself) but have failed miserably. I realize there are several factors that dictate how short or long an email may be, but in the interest of simplifying analyses for comparison, I would love to find an average. Any help would be appreciated!

Thanks, 
Monica Riordan
_____________________
The University of Memphis
Department of Psychology
mschpers at memphis.edu