This your assertion is very wrong because economic activities are defined with respect to a territory and not based on ancestries of the economic actors.
This is why the GDP of China is based on economic activities within China despite the fact that US companies like Apple and HP and S/Korean companies like LG and Samsung contribute greatly to the GDP.

homerac7:
@ OP,

voodoo economists and statisticians like you must be reined-in in a straight jacket and kept in a whitewashed steel door fitted room. reason is because mis-tailored statistics bandied around like you just did with NO interpretation can cause incalculable damages beyond what your puny mind can fathom.

THE LESSON:

Please and please, the value of any (and every) statistics is in its INTERPRETATION - which your spurious conjecture lacks. Any number is plain useless without an interpretation, same with our statistics. Only mischievous or dangerously ignorant people play with numbers in the ways you just did. But if you still think you are neither as described, onus is on you to INTERPRET your figures based on facts.

TO ALL:

Please ignore this babalawo figures this guy is throwing around. It is a half-truth that are meant to capture the fancy of simple minds. Let him show us the breakdown of taxpayers along their regions of origin irrespective of places where they are living or working, and such other vital info that will help to explain the gaping imbalance in his figures. Didn't Dangote, Ishiaka Rabiu, Dantata & Sons, and many other big time importers and industrialists contribute to duties and taxes collected from south west? what about the yam sellers, onion sellers and other northern businesses that contributed to the revenue of their "host states"? what about countless Emeka chemist stores, Chukudi auto parts, Chigozie supermarket and cosmetics store, and Madam Ngozi isi-ewu joints contributing all over the nation? ...CAVEAT EMPTOR !!!