It's important for everyone to understand that you (and most others who generate this type of data) are tracking an EXTRAPOLATED hash rate based on the rate of found blocks over time... since luck/variance will affect the calculation (especially with short timeframes like 24 hours or less), it would be better to describe this as "blocks found over time" instead of "hash rate" so people don't fall into the trap of thinking that hardware is being taken online and offline for whatever reason, since this seems to just fuel needless speculation.