Each disk represents a BCBS document. The x-axis indicates the document's
publication date (month / year). The y-axis captures the cumulative page count of all
publications to date in this category. You can explore the different categories by using
the selector below the graph and clicking the "Display" button. The size of the disk
scales with the number of pages in the document. The pop-up text includes the name and
title of the document, its publication date and a link to the BIS website.