There's an interesting discussion on the E.U.'s GDPR (General Data Protection Regulation) which comes into full force in May 2018. The impact of the regulation is far reaching, and will also affect how websites and services serve E.U. region cisitzens.

https://www.webmasterworld.com/analytics/4877103.htm

Here's the most recent stats: The General Data Protection Regulation (GDPR) Stats