The deme of T kept its population at 5555 until 9921.2 generations ago, when a linear decrease ensued until 9654.7834, to size 212. Subsequently, a exponential increase changed the numbers to 373 individuals by 270.8. Starting from 270.8, the population has seen a change from 373 to 8780 at a exponential pace, continuing to this day.
time_units: generations
demes:
  - name: T
    start_time: .inf
    epochs:
      - start_size: 5555
        end_time: 9921.2
      - start_size: 5555
        end_size: 212
        end_time: 9654.7834
        size_function: linear
      - start_size: 212
        end_time: 270.8
        end_size: 373
        size_function: exponential
      - end_time: 0
        start_size: 373
        end_size: 8780
        size_function: exponential