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 recently moved from Washington, DC to work as a Senior Product Designer at LinkedIn, and am happy to take your feedback. I'm from Philadelphia, went to Bowdoin College in Maine, root for the Phillies, and love to sing.