Majority of new IT grads earning 150k? This can't be representative sample for US.
> this is from about 100 data points, members of the “Hackathon Hackers” Facebook group, in 2015.
What's the point of analyzing data from such narrow and unusual sample?
RE: how to get data about programmers salaries, I'd say try to check job postings, they usually say how much company offers.