How Big Are the Youth Groups?

We divide much of the program into two age groups - 1-3 & 4-6. We have either one large youth group or two smaller groups for each of the age divisions. It would be great if we have 20 youth with 4-5 adults per group. Sometimes we have much less than that; on occasion we will not have a youth group signed up for one week (or a group drops out), so we (PUMP & interns) cover that week. I believe we have almost all of our weeks already filled for 2008.