FYI, today I've done a full dump of all bitcoin addresses ever used at least once. I've reached the number of 401,407,598 unique addresses for all block files from blk00000 to blk01275. The % is still really small. Smaller than 10^-40 %, at least.
can you post this entire archive on your website for download?
Sorry, because they are too much space consuming, I do not offer those.