ClickZ reports AOL's users are seeing a remarkable 75 percent decline in reported spam relative to last year. This, coupled with a 60 percent reduction in the amount of mail routed to the "junk" folders is much greater than the reduction in the number of subscribers AOL has seen over the same period of time. AOL reports that only 1.6 billion spam emails got through to users in 2004 and give credit to its improved filtering systems and its use of legal deterrents.