I see, that @Duja completely removed the table with the personal take of the editor. I am fine with this. I just made legal bold again and added the qualifier pre-eminently instead. We never will know how many times access=no was used (in the mean time) to convey sac_scale|mtb:scale|foot:scale|smoothness=unpassable or hazard=death – only extensive OTG research can tell.
You missed the abstract on the very top too
It has been fairly stable the last 14 years.