58.8% = one
23.5% = two
13% = three
5% = four
Only 10 people reported the spam was a problem. You can see why when you understand that the mean number of email's is FOUR a day. Some people were not very sure what "spam" was. That's a great contrast to my own experience as an early adopter and heavy user of the Internet. Good tools to control spam were not a feature of the early Internet.
People who get lots of mail need at least 2 and probably 3 accounts. All of the people in the top percentile had at least two, more likely three. Think separation: private mail; business mail; and social network mail, list mail and newsletters.
Most households are subscribed to several announcement only lists. Very few are subscribed to any discussion lists.
If you want a single measure of Internet activity, email flow is the obvious measure.
The median user is getting FOUR email a day. Mail is still the prime way most people get their online news. 90% of my mail is "news" from various sites I've subscribed too. NONE of that mail needs to be answered, and if I'm very busy maybe none of it will get read. I arrange my email so that non-personal mail goes to my Gmail account.
I'm getting more than 200 email's a day. I have a business mail as well as my personal mail. If I'm time short, only about 20 of those, do I need to open. Of those 20 maybe 8 might need a reply.
Some of the mail going to Gmail, also needs a reply, if I have time. For instance I subscribe to several Ryze groups, to at least six discussion lists, to Linkedin, Facebook, Xing and Ecademy and Viadeo and Internations. Because I run groups in Ryze, LinkedIn and Xing I need to got to each of those networks every day.