Add the middle grade scores (example: 8.5 out of 10 grades) for cards graded by PSA and Beckett services

So as my title says, PSA and especially Becket have long had increments for cards that almost reached a higher grade but failed by just a small bit, getting something like an 8.5/10 grade instead of an even 8 score, This is an oversight on price chartings part that needs to be corrected because many retro cards from Magic the Gathering, and Pokemon and Yugioh often fall into the 8.5 or slightly more dubious 7.5 category. Obviously any grade below those two incremental scores is not necessary because whom cares about a mid 6 or lower graded card. Thanks! -DS