On the market we have a lot SEO statistics providers like Google Analytics, Histats, StatCounter, etc. Many webmasters used few them and they often report about a different result. The result can be different in hundreds of visitors/pageviews per day.If the code is in different places on websites, then the result can be different, but if it's on same places, then results should be very similar. Does provides with some reason give false result or it's just technical reason?