In case someone needs it, I made this table from my 3N72 hub dynamo.
It is some basic measurements to help me with my project.
I used a 30Ω resistor as a load.

Note that the RMS values are correct only after the speed of 30km/h.
My multimeter is only able to calculate the RMS values of a sine.
Before that speed, the output of the dynamo is not sinusoidal!
But you can get an idea of the output from the peak-to-peak voltage.

Also note that when there is no load the voltage of the dynamo can rise to 50Vp-p.