Have to say I'm confused by what exactly you are trying to point out. You refer to a statement on a wiki page but exactly which one are we supposed to be reading carefully.
Secondly, you refer to the numberwatch link and presumably this is where the suggestion comes from that walking per km is more dangerous than cycling. That data is 15 years old! That said, as the author points out, people quote statistics to suit their agenda. Of the three categories, Km, Hrs and Journeys, walking is safer in two of them by some margin. You then question government figures but give no indication as to the basis of you challenging them which suggests it is just supposition.
Pedal cycle deaths have decreased virtually year on year despite the increase in the number participating. Could there be a link to the reduction in fatalities with the an increase in the usage of helmets?
2000 are the latest figures. I went to an Adur Council cycle meeting where we could pick up huge documents with lots of stats.
Cyclist deaths are increasing. 10 a year may be saved by cycle helmets. I bet the pedestrians figures will be much higher and a handful of deaths could be saved if young kids wore cycle helmets in their house.
It is ridiculous picking on cyclists compelling them to wear them when cycling. Would that be on roads only?