I had no idea the USA needed so many semi-private schools to make up for the lack of 'infrastructure' investments in the country.

Is it disclosed on the application for a charter, whom exactly built the building the school uses? Because if it is done with taxpayer money over and above that paid for students to attend there, I'm fairly sure that is corruption.

Year                        Number of Schools   (click here)

2000 - 2001                    1993

2005 - 2006                    3780

2006 - 2007                    4132

2007 - 2008                    4388

2008 - 2009                    4694

2009 - 2010                    4952

Enrollment was not available in 2000 because the programs were only becoming federal. But, in 2005 the enrollment was 448,343. By the time 2010 rolled around there were 1,611,332. I am not sure if all the students in Charter Schools are American students either.