Sad as it may seem, this is a topic that interests me and is something I've touched on with a song I wrote and perform in standup gigs but that site is amazing, so much work has gone into that.
They've collected so much data and made it interactive, simple, readable and manageable using, it looks like, nothing but HTML and CSS which is an art in itself imo and shows the power of what you can do with modern browsers and creative use of HTML and CSS these days.
Very well done, must have taken a long time to craft that.
If well-presented stats are your thing you might be interested in having a look at this as well:
https://www.ted.com/talks/hans_rosli...u_ve_ever_seen