[reitzensteinm]

They publish traffic numbers here: http://duckduckgo.com/traffic.html

Unfortunately it just ticked over on the month, so there's not much history there. For reference in the current numbers, I've been watching it for about 6 months if memory serves, and before the banner went up, it only broke 100k once. It's been getting 200k+ since the banner went up. So somewhere between double and triple the queries.