Thank you coeneisma for sharing this google chart based solution to represent data(scores) in a limesurvey. I imported your limesurvey question group file inside my survey and I changed from Pie chart to Bar chart with my own data and it worked well everything.
But I have one question: because I generated everything regarding the scores in the "end message" , I would love to represent the google based chart inside the end message , below the results table(averages, calculations and scores) in a smaller size. I don't know if it's possible .