What is stated in CIC is slightly confusing but my take is also same as that of Future's on this one. One needs to list all international travel details, irrespective of where they are at. If one is in country of origin then that becomes the base else wherever they are living now is the base for the travel, this is all they mean. And as rightly said, there is no harm in sharing details of all international travel anyways.
It says there "list all trips you, and if applicable, your family members have taken outside your country of origin or of residence in the last ten years (or since 18th birthday if this was less then ten years ago)."