So, I guess the point of the notebook was probably not the statistics but the scraping and plotting of the data. And furthermore, the author just used the data

So, I guess the point of the notebook was probably not the statistics but the scraping and plotting of the data. And furthermore, the author just used the data that Bloomberg used here: http://www.bloomberg.com/visual-data/best-and-worst/highest-paid-software-engineers-countries http://www.bloomberg.com/visual-data/best-and-worst/highest-...