just a quick information: no need to open multiple threads for the same topic (I saw the 2 other topics you already opened to discuss about Rally integration). Only one is OK 
More generally speaking, report is a feature available in Enterprise Edition, that gives you the possibility to extract a PDF report gathering information on your projects, metrics and trend history. You can ask for a trial version via our Contact/Evaluation Form or by sending a mail to contact@sonarsource.com.
If you would like to stay on Community Edition, you can extract data from SonarQube via the webAPI. There’s a link in your footer titled “Web API”. You can use web service calls to retrieve the data you want. It will be then up to you to extract the values from the JSON response and format the report.
Carine