Worth noting is that the shuttercounts reported by the camera do not actually appear to be completely reliable. I've done a bit of testing across various EOS models about 18 months ago and the shutter count does not always increase exactly with the number of shutter actuations. Before you ask, yes, I have tried turned the cameras off and on again and pulling the battery between actuations and readouts.
Simply put, I've seen variances up to 30% during my tests, though I'm not at all sure why sometimes it does and sometimes it doesn't update. If you care about this sort of thing it is easy enough to test yourself, though I have no idea if your camera will behave the same way. Of course, for most uses even a full 30% difference isn't all that relevant, just found it curious enough to mention.