that's a hard question. The most accurate information you can get is an information frormr your tracking service (whatever it might be). Because these are measured on the browser and not on any intermediate or source system. For example if you were able to consume the hit counters on publish, you would have to sum them up first, but you don't get any requests which have been delivered out of the dispatcher cache. If you take the numbers out of the frontend-webservers, it's a bit better, but you ignore any intermediate cache between your infrastructure and the endusers (e.g. any CDN).
So can you be more specific which number you want to show?