Until 9945.7 generations ago, the F deme's population was fixed at 6976. From 9945.7 to 7676.651, it underwent a linear change to 9429 individuals. Then, a linear change brought the count to 6628 by 1824.6367. Since then, from 1824.6367 generations to the current day, the population has changed from 6628 to 6022 at a exponential rate.
time_units: generations
demes:
  - name: F
    start_time: .inf
    epochs:
      - start_size: 6976
        end_time: 9945.7
      - start_size: 6976
        end_size: 9429
        end_time: 7676.651
        size_function: linear
      - start_size: 9429
        end_time: 1824.6367
        end_size: 6628
        size_function: linear
      - end_time: 0
        start_size: 6628
        end_size: 6022
        size_function: exponential