The number of individuals in deme E remained at 1171 until 8773.64 generations ago, at which time it changed to a new stable size of 9442.
time_units: generations
demes:
  - name: E
    start_time: .inf
    epochs:
      - start_size: 1171
        end_time: 8773.64
      - start_size: 9442
        end_time: 0