It would be better to have caoreteigs on the axes and each pentagon representing a year. Alternatively, if you want the line to represent evolution of the category through time, a simple line-plot would be easier to read. (Sorry to focus on the medium and not the message!)
It would be better to have caoreteigs on the axes and each pentagon representing a year. Alternatively, if you want the line to represent evolution of the category through time, a simple line-plot would be easier to read. (Sorry to focus on the medium and not the message!)