Deme E had an initial size of 1713 until 3383.6 generations ago. At that time, its population size increased to 6460, and has remained there till current time.
time_units: generations
demes:
  - name: E
    start_time: .inf
    epochs:
      - start_size: 1713
        end_time: 3383.6
      - start_size: 6460
        end_time: 0