UT BHP Admission Question

Last year UT BHP took 244 students for freshmen class out of 1828 applicants. Does anyone (current BHP students?) know, how many of the 244 students are in top 6% of their high school graduating class?

Wondering if they look at AP scores to compare students across school? How do they normalize student scores who is Top 2% from a big, regular school vs.a top ranked school (in TX & USA) with a smaller class size (say around 60 students) but not in the top 6%? Do schools submit what the top student GPA so that they can compare to the student applying to that school?
Appreciate feedback from anybody who has knowledge about these issues. Thank you.