Re:Bitcoin's mining difficulty has increased by 41.9% over t...
by gritzko on Tuesday December 22, 2015 @10:55PM
(#10781858)
Turnover: the amount of business transacted during a given period of time.
How much BitCoins change hands in a month, for example. Actually, plotting that in dollars is even more correct, as electricity costs are not paid with BitCoins.
Ultimately, that is a graph of dollars moved vs dollars wasted. (I explained the difference of "spent" and "wasted" in a different comment.)
I'm not sure what you mean by turnover although you might want to learn more about bitcoin before you rail so hard against it.