And we have yet another example of how to manipulate the populace. Combine numbers in as many ways as possible until you get one that makes your point. In a way, it is an inverted data dredge.
It is also a form of Conjuring. The conjurer gets you to look the other way (sometimes by doing it before anyone ever shows up to the theater) when he does his trick. Policy makers do it by presenting numbers without presenting the alternate numbers. I understand the problem the policy makers face though. Whether you are Jeb, mad at having lost your Roto-Tiller to thieves and expecting police to do something about it, or Margaret Thatcher presenting Global Warming as a crisis for the future, you have to make a decision and try and get others to make the same decision. Do you present all the possibilities or just the ones that support your side.
Any difference with Sweden has less to do with home insulation and more to do with the large ammount of heating by heat pump in Sweden. I am pretty sure that the energy expended in installation of these expensive systems is not tabled under the domestic heating column, where it by rights should be.