Ask HN: CMS vs. no CMS statistics?

Are there current statistics out there about percentages of websites using a CMS (any CMS) to manage content vs percentages of websites that don't use a CMS at all? I've looked around and don't see much, and certainly nothing current. Thank you.

Somewhat tangential but: as a general rule a company is either too big or too small to benefit from a CMS. (Not counting brochureware pages - "About", "Contact Us" etc.)