You only show 3 Kano classifications, I have heard there are actually 5?

Yes, there are five but the other 2 represent rare situations. The 4th is called “Indifferent”. Here is where the customers are neutral whether they don’t get them or do get them. Whether they are not fulfilled or completely fulfilled. The 5th is called “Reverse” and it is when you don’t fulfill them the customer is very satisfied and when you do fulfill them the customer is very dissatisfied. There are several reasons this can happen, one of the common ones is the customer misinterpreted the need in the survey you designed.