The pattern seems to be an effective floor of 7.4 until midway through Season 8, a floor of 7.3 until Season 11, and a ceiling of 7.3 from then on. I can't thi

The pattern seems to be an effective floor of 7.4 until midway through Season 8, a floor of 7.3 until Season 11, and a ceiling of 7.3 from then on. I can't think of why that would be the case, or how it makes sense.