How many people would be considered a “demand” for each of those courses? Obviously, for the first one, if there are 3,000 people who have participated in it, it's held more frequently because there is a higher demand. What would you consider a required number?
A secondary question is this. How often have you offered these in the last couple of years, if there is not a huge demand and there are only two or three people who are requesting it?
Those are my questions. What is the demand, and how often have you actually held these sessions?