The deme of H kept its population at 4617 until 7151.2 generations ago, when a exponential change ensued until 3214.31, to size 3211. Subsequently, a exponential reduction changed the numbers to 668 individuals by 3145.4068. Starting from 3145.4068, the population has seen a change from 668 to 2155 at a exponential pace, continuing to this day.
time_units: generations
demes:
  - name: H
    start_time: .inf
    epochs:
      - start_size: 4617
        end_time: 7151.2
      - start_size: 4617
        end_size: 3211
        end_time: 3214.31
        size_function: exponential
      - start_size: 3211
        end_time: 3145.4068
        end_size: 668
        size_function: exponential
      - end_time: 0
        start_size: 668
        end_size: 2155
        size_function: exponential