Some things are hard to find out, but worth the trouble.
Like discovering that your average gig attendance is 51.5057 – precisely -0.130506 on last year figures.
Or maybe it’s calculating the real cost of travel – approximately 51.5057 kJ of energy/mile, which is -0.130506 less than it was in the age of the camel-train.
Stats on, say, treasure, or indeed the spread of certain under-reported diseases can be harder to find.