You know the results bar at Google? The one that says, Results 1 - 10 of about X for keyword? It looks like this:
Well, it is never much all that accurate. Some novice searchers look at that to compare how popular topic A is to topic B, but that really doesn't make much sense. In addition, it is often fairly buggy.
For example, a WebmasterWorld thread has some webmasters noticing the bar read, "Results 1-18 of about 13 results" or something like that.
You got that? 1 - 18, first of all, Google shows max 10 by default. And of 13, but showing 1-18? Doesn't make much sense.
This is not surprising to many of us. I typically ignore that bar anyway, and you should likely ignore it too, or at least, take it for what it is worth.
Forum discussion at WebmasterWorld.