Sales numbers are not that exciting when some people can look at actual streaming statistics. Something like <a href="http:&#x2F;&#x2F;poly-graph.co&#x2F;timeless&#x2F;" rel="nofollow">http:&#x2F;&#x2F;poly-graph.co&#x2F;timeless&#x2F;</a> with album sales vs median track streaming count would be interesting. (median, because albums are not about hit songs)