[Meet the New Boss]

There you are speculating again making an assumption as to how the manuals work.

In point of fact, whatever the changes to the revised manual were, it is unlikely that they changed the numbers used in the coding system in mid-year.

If they did, the full-year data would be unreliable. The revisions most likely related to clarifying various things without changing the actual number system in mid-year.

[philman_36]

In point of fact, whatever the changes to the revised manual were, it is unlikely that they changed the numbers used in the coding system in mid-year.
But you don't KNOW that they didn't, in fact, change the coding system mid-August and unless the manual in use at that time is found and made available to the public it'll never be known.

Just more speculation on your part.