Would be helpful to see some histograms. The patterns of the data seem oddly suspect to me (sinusoidal - with things like Operations in 5 year earning more than

Would be helpful to see some histograms. The patterns of the data seem oddly suspect to me (sinusoidal - with things like Operations in 5 year earning more than ops at 7.4ish year). Maybe I am missing something but am assuming this is just because of sample size. It seems extreme for things like Operations and Hardware Engineer though.