It was by Air, December 2010. and it is in the report. That's is why I am confident of what I am saying.
Was your "first departure in 2010" by land or by air? Exit information is - as a I said earlier - collected for land border crossings, but not for air crossings.
Your Exit information is only collected if both of these conditions are met:
- You are not a Canadian or US citizen AND
- You are leaving across the land border
I requested my full entry/exit history and it included
- All entries into Canada, no matter if land or air
- Only the land border exits
- None of my air exits of which there are about 15 in the three years for which I requested the travel history.