The Y deme's size was 8210 until 9233.0 generations ago, when it began a exponential change, reaching 3055 individuals by 7932.0. After this period, the population underwent an exponential growth, reaching 6926 individuals by 1052.7. From 1052.7 generations ago to now, the population decreased from 6926 to 1851 at a exponential rate.
time_units: generations
demes:
  - name: Y
    start_time: .inf
    epochs:
      - start_size: 8210
        end_time: 9233.0
      - start_size: 8210
        end_size: 3055
        end_time: 7932.0
        size_function: exponential
      - start_size: 3055
        end_time: 1052.7
        end_size: 6926
        size_function: exponential
      - end_time: 0
        start_size: 6926
        end_size: 1851
        size_function: exponential