In our club it would also range from 6-8 per group. They try and keep it on the high end to keep the gym at full capacity but with kids leaving mid year, etc sometimes the numbers are reduced.
Our national girls is currently sitting at 6
Older gymmie's first year, there were 7 L4, 4 L5, and 1 L7. They had 3 coaches. As time has gone on, the team has grown. The next year, there were 20 girls and 3 coaches, then 32 gymnasts and 4 coaches, then 43 gymnasts with 4 full time coaches and other coaches that would come in 1-2 days a week, then 47 gymnasts and 4 full time coaches and other coaches that would come in 1-2 days a week. This year, we have 19 L3 with a Head coach of their own and another FT coach, 17 L4 with a Head coach of their own and 2 "event" coaches they share with optionals- Beam/Vault and Floor/ Bars, and our Optionals (4 L6, 4 L7, 9 XLG, and 2 XLP) have the "real" head coach and the 2 "event coaches. In addition to these coaches, we still have the part-time coaches (3 of them) that come in to help with the 55 gymnasts on team. Luckily, we will be moving to a new, bigger building in about a month and won't have to share our gym too much with the rec program. As it stands now, the gym is divided into 9 "zones" and each is strictly controlled until the last hour of practice when the team has the gym all to themselves and each group can have an entire event to work on.