Up until 5818.0 generations ago, the population of X deme was constant at 1397. It then entered a exponential phase of increase until 3871.0 generations, reaching size 2782. This was succeeded by an linear phase of change, leading to 775 by 2904.0. From 2904.0 generations to present, the population has grew from 775 to 8181 linearly.
time_units: generations
demes:
  - name: X
    start_time: .inf
    epochs:
      - start_size: 1397
        end_time: 5818.0
      - start_size: 1397
        end_size: 2782
        end_time: 3871.0
        size_function: exponential
      - start_size: 2782
        end_time: 2904.0
        end_size: 775
        size_function: linear
      - end_time: 0
        start_size: 775
        end_size: 8181
        size_function: linear