[cagriaksay]

Yes, the charts are US only. Averages are quite skewed. We have CTOs at 2 person startups as well. One of the things we learned is that averages are not very good for comparing your salary. You need to look at other data points for it to make sense (e.g. number of employees in the company, years of experience, etc.). That particular chart is good for comparing top paid job titles with each other, not so helpful to get an idea how much you would make.