ALL the numbers are overstated vs CSG.
I am not suggesting that CSG is correct and the "other" data is wrong, but there is a SIGNIFICANT variation in the two tables.
Number of lives shown for Omaha doesn't match CSG.
Also, I find it interesting that CSG offer LR information for Medigap but not for MA plans. Wonder why . . .
I think CSG gets its data from the NAIC Loss Ratio reports.
(see 2023 here: https://content.naic.org/sites/default/files/publication-med-bb-medicare-loss-report.pdf).
I would think it's fairly accurate, though there is certainly a lag - i.e. what we're able to see is already old.