Up until 9556.2 generations ago, the population of X deme was constant at 829. It then entered a linear phase of increase until 5549.1333 generations, reaching size 4908. This was succeeded by an exponential phase of change, leading to 6097 by 2834.6279. From 2834.6279 generations to present, the population has grew from 6097 to 9019 exponentially.
time_units: generations
demes:
  - name: X
    start_time: .inf
    epochs:
      - start_size: 829
        end_time: 9556.2
      - start_size: 829
        end_size: 4908
        end_time: 5549.1333
        size_function: linear
      - start_size: 4908
        end_time: 2834.6279
        end_size: 6097
        size_function: exponential
      - end_time: 0
        start_size: 6097
        end_size: 9019
        size_function: exponential