Until 8287.971 generations ago, the D deme's population was fixed at 3620. From 8287.971 to 7028.0, it underwent a exponential growth to 9175 individuals. Then, a linear change brought the count to 7617 by 169.9302. Since then, from 169.9302 generations to the current day, the population has changed from 7617 to 9087 at a linear rate.
time_units: generations
demes:
  - name: D
    start_time: .inf
    epochs:
      - start_size: 3620
        end_time: 8287.971
      - start_size: 3620
        end_size: 9175
        end_time: 7028.0
        size_function: exponential
      - start_size: 9175
        end_time: 169.9302
        end_size: 7617
        size_function: linear
      - end_time: 0
        start_size: 7617
        end_size: 9087
        size_function: linear