Hi.  I am trying to find out what the average spending is, in U.S.
PRIVATE schools only, for special education.

This spending needs to be the ADDITIONAL average spending, on top of
the "normal" tuition, that private school students pay for special
education.  For example, if the average private school tuition is
$5,000/year and a special ed student pays $7,500/year in total, the
INCREMENTAL spending for special education is $2,500.

Also, and this is not mandatory but would be very appreciated, I would
love to know what that same number (the incremental average spending
in U.S. private schools) is for learning disabilites only (that is,
excluding all other special education categories and only focusing on learning
disabilities)

Thank you in advance