Form component response time

I wanted to ask what are the form.rt column in the CSV file is saving? is in the time of each click on the answer relative to the start of the form component? or from the question above it?
I cannot figure it out from the CSV and it looks very weird.
thank you very much
Gal
1_reinforcement-learning_2021_Mar_24_0929.csv (8.5 KB)