I have a hard time understanding the emojis as measurement units here. If you u se from 1 to 5 I can easily follow, but emojis are abstract and open to different interpretations.
There are only two emoji in the table: “Neutral Face” and “Face Screaming in Fear”. It’s a rough measurement of feeling, not a detailed pain scale. If it helps, consider (in the “Passwords” line) the leftmost one to be 1 (“meh, don’t really care”) and the rightmost to be 5 (“oh no, huge loss”).