Niall, don't be obtuse. The figures are at least two years out of date. The UK govt. does not know how many immigrants are in the country. They said in 2004 there would be only 10-20,000 from the new EU accession countries. The actuality is guessed somewhere between 1-2 million. That's apart from non-EU Somalians, Albanians, Iraqis, Pakistani/Indian brides/grooms etc..
You appear as intelligent. Please don't wilfully drive yourself down dead-ends or try to obscure a point with a welter of stats. The point is not 61% or whatever per cent. The point is immigration is massive and purposely uncontrolled. This is of course relected on road usage and accidents; how can it not be?
I believe the true figure of accidents caused by foreigners as far greater as a proportion of total. But as no one knows who is in UK and what their status is, stats are at best misleading or plain worthless.
If you want to assess how the proportion of foreigners is going on UK's roads and accidents caused by them bear in mind up to 1 in 4 of all births in UK now are to foreigners. And of course this too will be a statistical under-estimate. Ah, but I'm sure we can rely upon HM Govt. to decree a blanket amnesty to all illegals, their dependants and offspring in the next year or so.