This blog post can be read at 5tth.blogspot.com
If you, Ofcom and Samknows, are going to claim the average speed of British connections is increasing, then please define by location (urban vs rural) exactly where these routers are. Because I hate to be a cynic but aren't the majority of your routers in places being cherry picked by the telcos for ADSL 2+ etc???
I could say the average speed on all British roads is 60+mph if all I measure are the parts of the motorways with least traffic and most lanes. Aren't you skewing the statistics in a similar way? After all, who is paying for the end reports???
Put an absolute minimum of 50% of your routers in rural areas, as defined by accepted statistics and/or definitions, and then re-present your data please. Otherwise, I hate to say it, but these claims mean nothing.
"Torture numbers and they will tell you anything"