NGC Price Guide for “Kennedy Half Dollars PROOFS” has Incorrect ordering for the 2023 S Clad sets. 1 1

[gfxhead]

According to https://www.ngccoin.com/price-guide/united-states/half-dollars/44/
The NGC Price Guide for “Kennedy Half Dollars PROOFS” has Incorrect ordering for the 2023 S Clad sets.
Missing from the list is 2014 P Clad High Relief SP
Missing from the list is 2014 D Clad
Missing from the list is 2014 D Silver High Relief SP (50th Anniversary set)
Missing from the list is 2014 D Silver High Relief SP Enhanced Finish
Why are only some years of the “Limited Edition Silver Proof Set” listed?

[KaileeS CS]

Hello @gfxhead, thank you for contacting us. Hope you're doing well! The Price Guides amounts are based on recently reported sales of NGC-graded coins. Unfortunately, this most likely means there has been no recent data reported to us on this particular coin. Kindly note that NGC does not put any values on coins or collectibles. We are so sorry for any inconvenience this may cause.

Please let us know if you have any additional questions. Thank you!

[gfxhead]

Just so there is No Confusion about "Incorrect ordering"

The list shows 2002 S Silver, then   down shows a 2023-S Clad.