Because the figures are so uncertain, there is space for Holocaust deniers to launch into scathing attacks to try and prove that the whole thing did not happen - or, at least, happened without gas chambers, on a smaller scale - and the numbers are just 'made up'. Anti-Semitic Holocaust deniers in particular believe that such figures are part of nothing more than a large piece of Jewish propaganda.
The Nazis may not have kept as many detailed records in later years, and destroyed many important documents before the camps were liberated. They did, however, still leave vast amounts of paperwork, enough to tell us of events that happened on specific dates. These mostly include transports and where they came from, how many new arrivals there were, and how many were selected for immediate gassing. We also know many of the smaller details from Holocaust survivors that have bravely given their testmonies since.
In trying to raise awareness of the Holocaust and the everyday occurrences that took place, the Auschwitz-Birkenau State Museum regularly post such figures on their Facebook page. For example, today's addition is as follows:
These are morbid events to think about, but they are important nonetheless. To receive these regular updates, click 'Like' on the Museum's Facebook page. A link can be found in the 'Useful Links' section on the right-hand side of the blog.