Census data show Oklahoma enrollment

Good article by Curtis Killman and Kim Archer in the Tulsa World today ("Tulsa leads in private-school enrollment"). It's clear that Oklahomans continue to choose public schools:

During 2009-2011, 92.3 percent of students in grades K-12 were enrolled in public schools, making the state No. 8 nationwide. 

Then again, are they really choosing public schools?