Great to see more people in the ROS community but what you are looking for is the ROS metrics report that is published each year. https://discourse.ros.org/t/the-2018-ros-metrics-report
ROS Resources: ROS Homepage | Media and Trademarks | Documentation | ROS Index | How to Get Help | Q&A Help Site | Discussion Forum | Service Status |
Great to see more people in the ROS community but what you are looking for is the ROS metrics report that is published each year. https://discourse.ros.org/t/the-2018-ros-metrics-report