Author here -- boxplot distribution is in the article. Also, any story I could string together would definitely be speculative, so just stuck to the few facts

Author here -- boxplot distribution is in the article. Also, any story I could string together would definitely be speculative, so just stuck to the few facts I know for purposes of article. Will speculate here, however :) -- I'm going to guess primary driver is efficient manufacturing coupled with simple product offering. (e.g. this isn't some Tech company employing X% of it's workforce for R&D purposes)