Posted by Leigh L. Klotz Jr WA5ZNU on Jan 06, 2012; 12:39am URL: http://elecraft.85.s1.nabble.com/Searching-the-reflector-archives-tp7108683p7156783.html
The qth.net archives presumably have the data back to 2000.
I seeded the nabble and mail-archive.com ones with the earliest messages, so they go back to June 6, 2004: