The number of visits recorded at some popular Web sites may be inflated by a little-known Google prediliction to pre-load pages that it guesses the user will choose from the results listed. If Google's prediction is accurate, the page is presented in a fraction of the usual time. But a site visit is clocked up, even if the user chooses to look elsewhere. Site owners who want to avoid these ghost in the machine page views that inflate their Web stats - or cost them money if they pay-per-byte for bandwidth - can block prefetch visits from Google and others by having their Web server return a 404 or 405 (method not allowed) HTTP response code for all such page requests. more details on http://www.mozilla.org/projects/netlib/Link_Prefetching_FAQ.html
So if someone does a search on "Barnsley" because they are looking for info on the town, one of the results would be the official site and it would load that behind the scenes but the user may click on summat else. Also - what constitutes a "hit" on the official site? It might be going on the home page in which case you could already be on there and generate a number of hits.