There are only two intrinsically meaningful values: None, and less than yesterday. Former indicates no analysis, second indicates new code/branch/paths checked in without tests.
Past that, it's all relative. Major code coverage here and sparse there tells some kind of story, either about lopsided risk, lopsided difficulty, or lopsided process.
Office365 introduced some crazy usage metrics like number of minutes and “engagement” and whatnot. It was total garbage and not right (showing my first active as 1030, despite using mobile and sending tons of email and doc edits at 6am). But it had a metric about engagement through using at mentions in my direct report chain. Some manager thought this was good and praised people very engaged and instructed people to be more engaged. A few folks just at mentioned instead of putting names in their email’s To field. They shot to the top of this dipshit’s leaderboard.