Until 6482.6 generations ago, the F deme's population was fixed at 9509. From 6482.6 to 2348.47, it underwent a exponential reduction to 2862 individuals. Then, a exponential growth brought the count to 3635 by 2317.9. Since then, from 2317.9 generations to the current day, the population has grew from 3635 to 4498 at a exponential rate.
time_units: generations
demes:
  - name: F
    start_time: .inf
    epochs:
      - start_size: 9509
        end_time: 6482.6
      - start_size: 9509
        end_size: 2862
        end_time: 2348.47
        size_function: exponential
      - start_size: 2862
        end_time: 2317.9
        end_size: 3635
        size_function: exponential
      - end_time: 0
        start_size: 3635
        end_size: 4498
        size_function: exponential