Seasonality of ER products, small multiples

Exploring other views of: http://flowingdata.com/2016/02/09/why-people-visit-the-emergency-room/. Code copied from Nathan Yau's work, and adapted.

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <link rel="stylesheet" href="stl.css">
  <link href='https://fonts.googleapis.com/css?family=Raleway:400,700' rel='stylesheet' type='text/css'>
</head>
<body>

<div class="projectTitle">Seasonality of products involved in ER visits, sorted by most to least seasonal</div>
<div class="projectDesc">For each product type and month, the chart shows the percent of accidents involving that product that took place in that month. For example, in 2014, just over 70% of all ER visits related to Fireworks occured in July. The products are sorted from most to least seasonal, ending with "stair/steps" accidents which are essentially equally likely in any month.</div>
<div class="projectDesc">The dashed line at 8.3% shows an "average" month. The y-scale emphasizes values between 0 and 20%, to better reveal the differences in seasonality between 0 occurances and 2x an average month.</div>
<div class="productDesc">Inspired by and adapted from Nathan Yau's <a href="https://flowingdata.com/2016/02/09/why-people-visit-the-emergency-room/">Why People Visit the Emergency Room</a>.</div>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
  <script src="stl.js"></script>
</body>

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js