What is problematic is that if those are luminosity readings, 94 should be paper white, and those readings should be at the beginning, not the end (unless you are using this for making digital negatives), If they are all the same then that means you don't have any tone until the 15% patch, or your spectro is not calibrating right.
You can try decreasing the gray highlight value or increasing the gray shadow value to separate those steps some more.
What equipment/paper/inks are you using?
Richard Boutwell