Great circular visualization. As for the numbers themselves, they’re from W3Schools.com, which clearly has a standards slant, so take them with that grain of salt.
I'm M. Jackson Wilkinson, a technologist, designer, speaker, educator, and writer in San Francisco. I'm the CEO and Founder of WeSprout, which is coming soon. I'm from Philadelphia, went to Bowdoin College in Maine, root for the Phillies, and love to sing.