Just wondering if they look up the history of when you entered and left canada. We couldnt provide specific dates because i was there every week for about a year. Do they look this information up when going through your package?
You only really need the detailed crossing information when you apply for citizenship. For a spousal sponsorship, it's not a big deal. Just include a note explaining that you don't recall the exact date(s) for answers to questions the require this information.