do a double agg, one for infinity, one for 90d
do a double agg, one for infinity, one for 90d

We're intested in the 90d summary, so we have to do two aggregations
here; one to get all lists, one to get 90d activity.

jimjag/ponymail,Humbedooh/ponymail,rbowen/ponymail,quenda/ponymail,rbowen/ponymail,quenda/ponymail,jimjag/ponymail,Humbedooh/ponymail,Humbedooh/ponymail,rbowen/ponymail,quenda/ponymail,jimjag/ponymail,jimjag/ponymail