The Org boasts about the 18 million in attendance to the annual Commemoration... In virtue of the fact that there are 7 million active publishers, there are perhaps several million children in attendance without mentioning the visit from former members (Disfellowships, Walkouts and Faders) who pay annual hommage to the Org due to their families and loved ones...
Judging by your experience on your Congregations weighting in the ratio of children, regular visitors and such...How much will you estimate the number of real 'visitors' to the commemoration?