<p>This sankey diagram dates from 1992 and it enables the reader a quick insight into Austria's main flows. Sankey diagrams are good at displaying the relative size of each flow in a visually very clear way. The relationship between different flows is also made clear, although this particular diagram shows few steps in the process. Recycling can be observed at the bottom.</p><p>This diagram was published in a 1992 study but the source is unknown. This particular image was found in a review on metabolism studies by Peter L. Daniels. <br></p>