There was an Ask HN post about earning in Europe.

https://news.ycombinator.com/item?id=15088840

Original Responses - https://docs.google.com/spreadsheets/d/1cjwB_s4ya57auTjIw-OV...

Then I went on to refine the data for my purposes - https://docs.google.com/spreadsheets/d/1AAJmOWOE-zYydNR_HzLU...