DOL processing time changes

Employer filled case in june.

Approx it should take 6 months (december 2021, if not audit), and statistics on Processing Times | confirmed it.

But some months ago DOL changes all numbers on their website (Requests Received, Determinations Issued, etc) and now i can see that june cases will be reviewed in February 2023…

I wonder how it could happen? did they move some thousands of cases from one month to another?