And if you are from the us well, canada is close and people will think of whichever nearby place they like more than their current one. (Like, canada, usa, mexico, canada, usa, mexico...hmm.. ok canada!)
If you had asked that in europe canada definitely would not score 99% because of the reason someone else discounted australia, it is far away. Not the first thing to pop into your head. Not really on people's radar, they have a good rep though, but it would be more like "what about canada?" "Ow yea, that's not bad either!"
to me it is like asking which person is taller, but excluding some people because they are poorer. Followed by something like; yea but people with more money are "bigger" because they are more important.
If you are talking about small population say small population, not the size of the country.