Almost everyone hates spam. The only people that don’t hate it are the ones that make vast amounts of money from sending it. The profits they turn are so large that regardless of what spam fighters do, the amount of spam keeps increasing. According to web security firm MessageLabs, spam accounted for 81.5 percent of all e-mail traffic in June.
This number, which is calculated based on 3 billion e-mail connections that MessageLabs scans every single day, more or less corresponds with US-specific data. An analysis of year-to-date spam rates for individual US states shows that the percentage of e-mails that were spam range from 77 (Montana) to 91 percent (Illinois). In other words, in every single state in the US, over three quarters of e-mails sent are junk. The average spam level in the US was 86 percent in June. (link)