An interesting question, how do these services calculate the hashrate?
There are a lot of mining pools and not all pools are known and open to statistics
I would like to know that. I thought you could see the hashrate somewhere in real time but all reports seem to have days of lag and so the chart is seem to be made off single daily points.. probably some average or opening hashrate or something, I don't get it.
And as far as the theory, to me it remains interesting because we've had crazy places before like Bhutan showing interest in Bitcoin mining, and im sure Russia and others are mining hard.