From UltraNormal, Kevin Lawver: "So, I'm cleaning out my old e-mail, deleting everything older than a year, and I just realized that in 2004, I received and stored (which means it's not counting spam) over 24,000 pieces of e-mail to my work address, and over 1,400 (not counting things that get moved to other folders like listservs, comments on my site, breaking news, etc) to my personal e-mail addresses. (snip)
So, more than 25,400 pieces of e-mail passed through my inbox. "

Me, too--and at least half was probably spam.