The number of individuals in deme N remained at 4175 until 8735.961 generations ago, at which time it grew to a new stable size of 5607.
time_units: generations
demes:
  - name: N
    start_time: .inf
    epochs:
      - start_size: 4175
        end_time: 8735.961
      - start_size: 5607
        end_time: 0