The global browser market has a good support for SVG, both in mobile and desktop browsers. There is, however, a significant portion of users who don't enjoy SVG support; the most notable examples are the users of Internet Explorer 8.0 and older as well as users of the stock browser of Android under 3.0.
According to http://caniuse.com/, about 86 percent of the global browser market has basic SVG support (as of May 2014). Most of the applications can't afford to leave 14 percent of their users behind. With these users in mind, we will learn how to create data visualizations without using SVG and how to add SVG support to the browser using polyfilling. You can check a more up-to-date version of this and other tables on Can I use... (http://caniuse.com/#feat=svg).