The number of individuals in deme M remained at 5418 until 9105.5807 generations ago, at which time it grew to a new stable size of 5662.
time_units: generations
demes:
  - name: M
    start_time: .inf
    epochs:
      - start_size: 5418
        end_time: 9105.5807
      - start_size: 5662
        end_time: 0