The J deme held its population size constant at 3020 until 6622.204 generations ago, then experienced a linear change up to 1700 individuals by time 2466.0. This was followed by an linear growth, resulting in 5752 individuals by 622.599. From 622.599 generations onward to the present, the population has been on a linear change from 5752 to 7067.
time_units: generations
demes:
  - name: J
    start_time: .inf
    epochs:
      - start_size: 3020
        end_time: 6622.204
      - start_size: 3020
        end_size: 1700
        end_time: 2466.0
        size_function: linear
      - start_size: 1700
        end_time: 622.599
        end_size: 5752
        size_function: linear
      - end_time: 0
        start_size: 5752
        end_size: 7067
        size_function: linear