SVG line graph design pattern

Demo from this accessible SVG line graph post.

WebAIM screen reader survey: results 2009 to 2015 Time Jan 2009 Dec 2010 May 2012 Jan 2014 Jul 2015 Jaws 74% 69.6% 63.7% 63.9% 43.7% NVDA 8% 34.8% 43% 51.2% 41.4% VoiceOver 6% 20.2% 30.7% 36.8% 30.9% Desktop screen reader use: 2009 to 2015