I was referring to your post which was apparently directed at Torus making proper measurements, not my measurements or me making measurements.In this particular case, a measurement made by someone with knowledge of what he is doing and being able to interpret it.
Anyone could confirm your results using an oscilloscope with FFT capabilities. Sorry I do not post on the way on doing it, but measuring the mains always involves hazard risks, unless we use a toroidal insulating transformer or a dedicated instrument.
I thought you were implying that the curves Torus provided needed more explanation.