Statistics about Pecentages of Artists/Albums over a fixed time

See statistics like in the "Statistics" tab but for the information in the "Top" tab. E.g. if selected "4 weeks" and on the "Top Artists" tab show a bar graph or a pie chart of the percentages of top 10 (this could be variable) artists over 4 weeks. This would give an overview of the percentage of someone listening to one artists e.g. excessively. Otherwise one can only get this information by looking at the amount streamed data in "Top" (e.g. 400 streams of #1 artists via 100 streams of #2 artist)