They are not my figures, and you miss the point, which is about relative importance. It's 12% important to us and 7% important to them. If we lost all our European trade altogether, we'd be 12% down. They'd be 7% down. There's nothing disingenuous about that. In terms of %age of exports, we'd be 45% down and they would be 7% down.
As I have posted previously, what is misleading and disingenuous is to pretend that the EU (calling it a single body, when in fact it is a bunch of loosely aligned sovereign states), needs us more than we need them and therefore we hold the upper hand in any trade negotiations.
That very simplistic and erroneous claim, completely ignore the fact the the EU's trade with us is comprised of that of 27 nations. Our trade with them comprises of 1 nation, i.e. us.
If we fail to reach a satisfactory trade agreement, on the one side there is us who are massively impacted. Whereas on the other side there are 27 nations who are only marginally impacted. Their "pain" would be shared amongst 27 states whereas our pain would be shared with no-one. If we fail to reach agreement, how much do you think Latvia and Estonia will be inconvenienced? Yet we need their support in order to reach agreement.
This is a terrible basis for favourable negotiation.