Layer Estimates:

Layer: population_RA (ID:0)
Count: 1
Extent:

XMin: -8669856.1325
YMin: 4429370.4582
XMax: -8441745.4423
YMax: 4599097.7
Spatial Reference: 102100 (3857)

Layer: GroupBySummary (ID:1)
Count: 14