Are there really seven billion people on earth?

Have you ever wondered whether the population stats in your country are true? or are you just one of  those people that just don't give a hoot?

Disclaimer: what i intend to share with you simply is just but an NB, I'm not trying to create an insurgency for people with their governments I'm just trying to show you the possibility or the significance of population and funds. 

 Are there really seven billion or so people on earth?

 I can think of a few reasons to exaggerate population numbers. Most have to do with a socialistic type government system. Simply put: There is a reason to exaggerate numbers if there is money in it.

 Reasons to exaggerate:

•  More population means more money for social programs. Public schools can get more money by exaggerating student population. Jails can get more money by the same process. 

•  More road building. By exaggerating the need for roads, more can be built, and more money for contractors and such. Same with hospitals, schools, and even churches.

•  More charity aid.By exaggerating the number of starving children in Africa, the charity promoters can tug at hearts and purse strings a little better. Also perhaps exaggerating the number of AIDS victims, and tuberculosis victims, thus commanding more money.

 Some evidence, perhaps, that numbers have been exaggerated;

•  Large 'ghost cities' in some countries. Maybe there just isn't enough people to fill them?

•  Many dead people found still drawing a pension. in some countries there was a news story about looking for some old pensioners, only to find they were dead, and hidden by the family, so they could continue to receive the government dole. some countries brag about having such a long life span in their population. Maybe the dead just aren't being reported?

•  Cities are going broke. Maybe it's not so much the economy, but just that there aren't enough people to pay the taxes. Of course, one reason is that the cities are full of aliens who don't pay any taxes; that a big part of it. But maybe they are trying to run a city on a budget for, say, two million people when there are only a half million?