Just to clarify maybe a little, there have been a suite of UN Security Council resolutions and sanctions associated with those. With each resolution, we've then implemented measures under the UN Act. We've been implementing that as they go along. Those all relate to non-proliferation concerns basically. I'd say on those, in terms of effectiveness, it's hard to separate out the Canadian piece from the broader piece. I think you'd have to look at how effective the UN sanction regime has been as a whole.
Your main question was about the unilateral one, though. Those were under SEMA. Those were in response to that specific incident, the sinking of the Cheonan, and I'd say, in purely commercial terms, they were quite effective. We didn't have very much trade with North Korea to begin with. I believe that it was in the order of about $26 million before sanctions. I don't have the exact figure, but it's now under $1 million, I would imagine. Our trade with North Korea has gone down to virtually nothing, again, outside of those small number of humanitarian exemptions. That has been very effective.
Since our trade was so small before, these sanctions probably haven't had a huge material impact in North Korea, but some of the other measures, relating to, for instance, financial transactions and transiting through Canadians ports, have perhaps had more significant impact. It's a little hard to measure those, but I'd say, in terms of the importance to North Korea economically, those may have been more important.