Looking at numbers printed and excluding all other factors can sometimes lead to incorrect conclusions.
1. Not all notes that were printed were necessarily issued for circulation, and that is particularly true of replacement notes. If they were not needed while still current, they were destroyed. [Some EXTREMELY important information on this topic will be published shortly.]
2. It is also important to consider the number of notes that were saved for the hobby. Sometimes notes with a very large printing were not saved in proportion, and can be quite scarce. Conversely, some notes with small printings were extensively saved, and turn out to be more plentiful than one might suppose. Think 1948 silver dollars or 1991 caribou 25ยข!
It should not be difficult to find other replacement notes whose values seem out of line with the numbers printed, and the reasons are the same as above.