http://design.data.free.fr/RUCHE/documents/Ergonomie%20Henry...
U.S. 50. %tile weight is now 194.7 lb not 161.9 lb and I suspect that the 97.5 %tile is even worse (but a cursory search didn't find any data).
See https://en.wikipedia.org/wiki/Human_body_weight#By_country
I thought the reliability statistics for the different dial types was fascinating.
https://news.ycombinator.com/item?id=11230287
How in WWII a statistician noticed there are no average sized humans and the dangers of building for a mythical average.
https://www.kickstarter.com/projects/iacollaborative/reissue...
http://design.data.free.fr/RUCHE/documents/Ergonomie%20Henry...