Figure 5. PDF of the average time 
between two successive edits of articles measured in days.
In any two week period most of the articles are edited twice or more.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.