Here’s a comparison between IE9 and IE6:
So, the data displays on both but it looks pretty ugly on IE6. Well, CSS is much better supported than SVG, so in the spirit of Progressive Enhancement you can provide an external stylesheet to improve the look of the table. We also provide one as part of our service, if you want to use it:
As well as being a Progressive Enhancement, CSS intrinsically degrades gracefully so it looks okay on IE6 and better on Firefox 30:
So, simply adding an appropriate table style gives you readable content on all browsers, which looks good on fairly old browsers and ace for at least 67% of users who have fairly modern browsers.