Spatial parameters of the average habrauser

From pure interest, we decided to see how the parameters of the average habrauser change over time.
Such a question arose among us after we saw this picture.



Is this trend true?
For information we are interested in, we turned to our data on the sale of T-shirts with habrasay for April 2013 and compared them with the data of March 2014, which appeared after this post - habrahabr.ru/company/luckytee/blog/217047
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What happened?


The chart shows how much percent is a particular size of a T-shirt in total sales in 2013 and 2014.



There is an obvious increase in sales of T-shirts of XL size and especially XXL, which occurs due to a relative decrease in sales of T-shirts of the size M and L. Such data can not but cause concern, since we need more and more fabric for sewing T-shirts to demonstrate that we are concerned about our own weight and health not very noticeable yet.

By the way, there are still opportunities to purchase a T-shirt with the specified design on our website LuckyTee.ru and worsen / improve the statistics.