Even though our computers are now better than 15 years ago, they still malfunction 11%–20% of the time, a new study from the University of Copenhagen and Roskilde University concludes. The researchers behind the study therefore find that there are major gains to be achieved for society by rethinking the systems and involving users more in their development.
All 0.4% of the user base or whatever it is? Unless you mean among the population of server admins.
You mean like 50%? Or do you only mean desktop users? Which would be 4%.