Always tough to have stats in open source but you can get some numbers on the wiki: http://wiki.ros.org/Metrics

On Wed, Jul 1, 2015 at 4:06 PM, Leopold Palomo-Avellaneda via ros-users <ros-users@lists.ros.org> wrote:
Hi,

I think (maybe I dreamed it) that sometime ago it was a survey asking about
the time of the development of ROS (every 6 months new version or a year,
...), follow ubuntu LTS or no, and I think that it was asked there. But, I
have been searching on the net with no results.

Do you know if exist some statistics about the number of installations of ROS
using packages, or from source, or which OS are used?


Best regards,

Leopold

PS I'm not asking for this survey
http://www.ros.org/news/2014/04/ros-user-survey-the-results-are-in.html


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